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before Insert Record in Database Check duplicate value| Insert |Search|Update in VB.NET with code
 
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before insert record in Database check duplicate value| insert |search|update in vb.net with source code.check duplicate value if not found then insert record in database.... #searching record in database #upadate record in database #How_to_Update_Record_in_database #how_to_Delete_record_in_database Original Credits: who made this video CODERBABA and YOUTUBE. ........................... my website https://goo.gl/yMhpe3 ............................. Thanks for watching these videos , hit like , subscribe our channel n yes don't forget to share with you friends ............................ Thanks for being with us make sure you share and stay with us with subscribing us - regards CODERBABA, codr baba, CODER BABA,Coder Baba,CoderBaba ?? ...................... Follow Us Socially ?? Facebook : https://goo.gl/tEWJ6X Instagram : https://goo.gl/2Z3nBs Twitter : https://goo.gl/Yrnxvd ............................ NO COPYRIGHT INFRINGEMENT IS INTENDED THIS PURELY FOR PROMOTING MYSELF AND SHOWING MY SKILLS AS YOUTUBE BLOGGER. THIS IS PURELY FOR NON PROFIT. ............................ LIKE ? SHARE ? SUBSCRIBE ............................ See you in next video, have a nice day. GOOD LUCK
Views: 9988 Coder Baba
PL/SQL tutorial 60: Collection Method EXISTS in Oracle Database by Manish Sharma
 
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RebellionRider presents you the latest PL/SQL Tutorial 60 on Collection method EXISTS by Manish Sharma ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/exists-function Previous Tutorial ► ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ------------------------------------------------------------------------- ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 7335 Manish Sharma
Java & MySQL - Check if a value already exists
 
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Easy tutorial on how to check if a value already exists in the database.
Views: 27698 Mozoran
stop duplicate record in  database
 
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In this video i will teach you how to stop duplicate record in database sql server and with C# please watch and subscriber this video
Views: 11623 Ebook
EXISTS Condition in Oracle Database
 
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#Exists oracle exists vs in, if exists in oracle, oracle not exists vs not in, difference between in and exists in oracle, case when exists oracle, oracle check if record exists, if not exists in oracle, oracle update where exists
Views: 20 Adam Tech
Part-11 check if record exists before insert cSharp sql
 
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check if record exists before insert cSharp sql
Views: 30072 code factory 2016
Oracle SQL Tutorial 15 - How to Add Primary Key Constraints
 
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The goal of this video is to take the CREATE TABLE statement we have and walk through the different ways to create primary keys. This and foreign keys are the most common constraints, so we need to make sure that you have this one down. Once we have a more complex database design with multiple tables, we will learn the proper way to create foreign keys. For now, I am going to keep all of our constraints at the column level, unnamed. The only exception is the primary key, because that is what we are focusing on in this video. The first way to create the primary key is at the column level, unnamed. The primary key is very important because it what we use to distinguish rows from one another. Every table you create is going to need a primary key, and I suggest putting a lot of effort into making sure your keys are set up correctly and organized. --Delete the table if needed: DROP TABLE users; CREATE TABLE users( user_id NUMBER PRIMARY KEY, username VARCHAR2(50 CHAR) NOT NULL UNIQUE ) The next way is at the column level, but named: --Delete the table: DROP TABLE users; CREATE TABLE users( user_id NUMBER CONSTRAINT users_pk PRIMARY KEY, username VARCHAR2(50 CHAR)NOT NULL UNIQUE ) The general naming convention here is the table name followed by an underscore, followed by pk for primary key. Finally, the third way, which is at the table level, is the way we are going to create our primary key: --Delete the table: DROP TABLE users; CREATE TABLE users( user_id NUMBER, username VARCHAR2(50 CHAR) NOT NULL UNIQUE, CONSTRAINT users_pk PRIMARY KEY (user_id) ) Now, once you've created these constraints, you can use Oracle SQL Developer to find these constraints. Open your databases in the connections tab and find the table in the Tables folder. Double click your table and travel to the Constraints tab. You can tell here that the UNIQUE constraint still exists in this table, but it has a pretty disgusting name. It kind of wants to make me puke. Referencing that constraint in the future with that wacky name would be a burden. Engrave these three options in your head so that you can use any of them whenever you need and can read other peoples' code. Thank you for sticking with the series thus far. In the next video, we will be…doing something. See you then! :) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me on Patreon! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 15166 Caleb Curry
The SQL EXISTS clause
 
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How to use the EXISTS clause in SQL. For beginners.
Views: 23229 Database by Doug
Oracle SQL Tutorial 13 - How to Add Column Constraints (Attributes)
 
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So far, we have this table declaration: CREATE TABLE users( user_id NUMBER, username VARCHAR(50 CHAR) first_name VARCHAR2(50 CHAR), last_name VARCHAR2(50 CHAR) ) We can run this command see that it works. As we are learning though, we are going to want to be able to recreate our table with different settings and such, but if you try to run this command, it will complain that the table already exists. So we first need to delete this table before we start editing settings. When we get more experienced, we will learn about ways to edit the structure of a table that already exists. To fix this, we can get rid of the table using the DROP TABLE command: DROP TABLE users You can run this every time if you need to practice by adding a semicolon after it. This is how you can tell Oracle that you are putting in another command after it. This is known as a delimiter. When you run the script, it is going to run both commands. Now we can go through and reconsider our table structure. This is fine for starting out because we don't have any important data in our database, but once your database is in production you are not going to want to just drop tables. In the last video we discussed different constraints that you can apply to columns in a database table, but how do you actually apply these when you are creating a table? The first way you define constraints is to put them right after the column in your CREATE TABLE statement. CREATE TABLE users( username VARCHAR2(50 CHAR) NOT NULL ) When we define constraints this way, we usually say we are adding column attributes. If you have two constraints you want to add, you just put one after the other with spaces in between. There is no particular order that is required. CREATE TABLE users( username VARCHAR2(50 CHAR) NOT NULL UNIQUE ) In this situation we have already given the column the NOT NULL and UNIQUE attributes, so we should consider making this a primary key: CREATE TABLE users( username VARCHAR2(50 CHAR) PRIMARY KEY ) As you can see, adding column attributes is super easy. We can add a default like this: CREATE TABLE users( username VARCHAR2(50 CHAR) PRIMARY KEY, account_balance NUMBER DEFAULT 0 ) Note that now we need the comma after the first row. There are a few constraints we did not talk go through an example, specifically foreign keys and check constraints. We will be adding these constraints to our database in future videos. In the mean time, I have a thought for you… Many people prefer to name their column constraints. That way, we can refer to certain constraints by name. For example, we might have a primary key constraint that could be named users_pk. The way we are creating these constraints does not allow for this feature, so in the next video we are going to be discussing different ways to create constraints. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me on Patreon! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 20983 Caleb Curry
Finding Database Columns By Name in Oracle SQL Developer
 
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How to find all columns in your Oracle Database by searching on the name.
Views: 6342 Jeff Smith
Merge: Databases for Developers #17
 
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Sometimes when adding rows to your database need update-if-exists, insert-if-not-exists logic. Aka an upsert. You could write this as separate update and insert statements. But there is an easier way: Merge! Watch this video for an overview of how merge works. Further reading: Merge documentation: https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/MERGE.html Delete rows not in the source using merge: https://technology.amis.nl/2006/10/14/have-merge-remove-records-from-target-that-are-not-in-the-source-oracle-10g/ Take the course: https://devgym.oracle.com/pls/apex/dg/class/databases-for-developers-next-level.html Need help with SQL? Ask us over on AskTOM: https://asktom.oracle.com Twitter: https://twitter.com/ChrisRSaxon Daily SQL Twitter tips: https://twitter.com/SQLDaily All Things SQL blog: https://blogs.oracle.com/sql/ ============================ The Magic of SQL with Chris Saxon Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 791 The Magic of SQL
How To Check If Column Exists for a Table Or View in Database in SQL Server - SQL Server Tutorial
 
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On daily basis, we come across this scenario when we have to find out if a column exists for a Table or View in Database. Specially if we are debugging SQL Server Reports/An application, we take a column name or part of it and want to know that from which table this column is used. We can query INFORMATION_SCHEMA.COLUMNS view to get this information. blog post link for scripts used in this video http://sqlage.blogspot.com/2014/01/tsql-how-to-check-if-column-exists-for.html
Views: 4971 TechBrothersIT
ORACLE PL/SQL INTERVIEW :PALINDROME NUMBER PROGRAM
 
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This video tutorial demonstrates on the Oracle PL/SQL interview question of writing a program for finding whether a number or string is palindrome number or string or not, the video explains a very simple and generic approach that can be used to solve this question. You can get the code from our website http://oracleplsqlblog.com/FullBlog/FullBlog/16
Views: 2336 Kishan Mashru
MSSQL   Check if index exists and if exists delete it
 
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More: http://howtodomssqlcsharpexcelaccess.blogspot.ca/2016/02/mssql-check-if-index-exists-and-if.html
Views: 469 Vis Dotnet
SQL Error ORA-00942 Table or View Does Not Exist in Oracle Database
 
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How to use Tab View (Data Dictionary) of Oracle Database to solve the SQL Error ORA-00942 Table or View Does Not Exist error in Oracle Database ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/ora-00942 Previous Tutorial ► ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ------------------------------------------------------------------------- ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 7026 Manish Sharma
Oracle SQL MERGE Statement
 
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https://www.databasestar.com/oracle-merge-sql/ In this video, we’ll learn what the Oracle MERGE statement does and how you can use it. What is the MERGE statement? It’s a statement that lets you either insert or update data in a table - all in a single statement! It’s helpful if you’re using an ETL (Extract Transform Load) process when creating or updating a data warehouse. It’s also helpful when loading data into your own database if you’re not creating a data warehouse. It allows you to prevent duplicate data and ensure you have up-to-date data in your table. The syntax looks like this: MERGE INTO table_name USING table_name ON (condition) WHEN MATCHED THEN update_clause DELETE where_clause WHEN NOT MATCHED THEN insert_clause [LOG ERRORS log_errors_clause reject_limit integer | unlimited ] In this video, I also show an Oracle SQL MERGE statement example, so watch the video to find out more. For more information on the MERGE statement and how you can use it in your queries, read the related article here: https://www.databasestar.com/oracle-merge-sql/
Views: 554 Database Star
Check if value exists in the database asp.net c#
 
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In this video tutorial i will give a example of data which is either available or not. Whole process is done through SqlDataReader class. Also available in: -- How to use SqlDataReader class. --How to check data in the database table --How to check availability of data in the database table --How to read particular column from data reader
Views: 17118 ASPNET WEBFORM
Oracle Database11g tutorials 14 : How to CREATE TABLE using sql developer and command prompt
 
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Oracle Database11g tutorials 14 How to Create table using command prompt and Create table using sql developer Blog Link http://bit.ly/1TkY4Oe Time Line 0:25 Introduction of Tables in Database 1:03 What is Create Table (Introduction of create table) 1:30 Syntax of Create Table 2:08 How to create table using Command Prompt 4:55 How to create table using SQL Developer Links for Oracle Database tutorials 4: database connectivity using SQL developer and command prompt http://youtu.be/wSqoXRlXDUU You can have indepth knowledge about SQL create table here http://www.rebellionrider.com/sql-create-table.html Tool used in this tutorial is command prompt. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com Today in this oracle database tutorial we will see How to CREATE A TABLE. if we have to define a table in layman language then we can say that Tables are just a collection of Rows and Columns but In RDBMS tables are database objects which help in organizing data into ROWS and COLUMNS. We can also say that SQL tables are kind of data structure which are used by database for efficient storage of data. To create a table in our database we use SQL CREATE TABLE command. SQL CREATE TABLE is a type of DATA DEFINITION LANGUAGE also known as DDL. To Create a table in your schema you will require CREATE TABLE system privilege. In our future videos we will see what are system and object privileges and how to grant them to a user. Today for this video we will be using Sample schema HR which already has all the necessary privileges. Ohk Let's see the syntax. CREATE TABLE table name ( column name1 Data-Type(size), column name2 Data-Type(size), ..... ); CREATE TABLE is an oracle reserved word or say an Oracle key word whereas There are 3 different ways of creating a table in Oracle database. Creating a table using Command Line Interface (CLI) in Oracle database For demonstrating how to create table in oracle database using CLI, I'll be using Command prompt. Thats how we create table using command prompt. you can check your table structure by DESCRIBE command for that just write DESC and your table name. Like this Another way of creating a table is by using Graphic user interface (GUI) in Oracle database To demonstrate how to create table using GUI we will use SQL developer. Lets open our SQL developer I am connected to HR schema if you do not know how to create a connection to database using SQL developer please watch my oracle database tutorial 4 that explains database connectivity using SQL developer and command prompt. Link for this video is in the description below. So lets create a table. Creating a table using SQL developer is very easy we do not have to fire any query here. Let's start First of all right click on your connection in which you want to create a table and choose schema browser. This will open a separate schema browser pane or you can expend your connection by clicking this + sign and then right click on table and choose New Table. However I prefer working with schema browser so let's skip to schema browser pane here from the first drop-down list you can choose connection name and in the second drop down list you can choose what database objects you want to work with we want to create a table thus I'll choose table and then click this arrow here and choose option for new table Ok we have created a table wizard first of all give a unique name to your table and add some column as well. For this, click the green plus button. Now we already have a column so give it some name. Also choose a datatype from the list and specify any size you can check this not null column if in case you want to make this a mandatory column you can also specify default value and constraint If you want to make this column a primary key you can click here In my future video i'll show you what are these constraints and different ways of applying them on a column in a table. for this video we will concentrate on create table only so when you are done with all your columns click ok Thats your table You can double click on your table here and can see its structure. Thats it
Views: 179257 Manish Sharma
VBA Microsoft Access check if a table exists in the current database
 
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This tutorial will show you how to check if a table exists or not using VBA in Microsoft Access You can get the code for this example from here https://github.com/codecaine-zz/Microsoft-Access-VBA-Global-Functions
Views: 101 codecaine
How to find duplicate records in table sql
 
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There are various times when we need to find duplicate records in SQL Server. It is possible to find duplicates using DISTINCT, ROW NUMBER as well as the GROUP BY approach. ------------- May be you like this -------------- umbraco playlist : https://www.youtube.com/watch?v=zoefdruzmGE&list=PLv0T7WlllnSnYRedhwL8x-atkVxrSdd3m Angularjs playlist : https://www.youtube.com/watch?v=KXjD1RiAz1U&list=PLv0T7WlllnSkCfNftTNY8tWqCFWT0sIMd jquery playlist : https://www.youtube.com/watch?v=jVncasz_iyw&list=PLv0T7WlllnSkkNahiiWu_GMXq49X5ccfe F Wcf playlist : https://www.youtube.com/watch?v=NB4k0RC6vl0&list=PLv0T7WlllnSmcGHacEQnLgKvitcJEsSl6 c# playlist: https://www.youtube.com/watch?v=ZrP0NKbsr8s&list=PLv0T7WlllnSl9pZWMaMGsyoAmqZtW4gM0 Duplicate records can create problems sometimes when displaying reports or performing a Multiple Insert update. Finding duplicate records in a database needs further investigation. In some cases, duplicate records are positive, but it all depends on the data and the database design as well. For example, if a customer has ordered the same product twice on the same date with the the same shipping and billing address, then this may result in a duplicate record.
Views: 14868 Go Freelancer
8. Use LOG ERRORS to suppress SQL errors at the row level.
 
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The impact of a non-query DML statement is usually "all or nothing". If my update statement identifies 100 rows to change, then either all 100 rows are changed or none are. And none might be the outcome if, say, an error occurs on just one of the rows (value too large to fit in column, NULL value for non-NULL column, etc.). But if you have a situation in which you would really like to "preserve" as many of those row-level changes as possible, you can add the LOG ERRORS clause to your DML statement. Then, if any row changes raise an error, that information is written to your error log table, and processing continues. IMPORTANT: if you use LOG ERRORS, you must must must check that error log table immediately after the DML statement completes. You should also enhance the default error log table. Related blog post: http://stevenfeuersteinonplsql.blogspot.com/2016/03/nine-good-to-knows-about-plsql-error.html ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
MSSQL -  How to check if Stored Procedure existis and if exists display its definition
 
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Copy code from here: http://howtodomssqlcsharpexcelaccess.blogspot.ca/2016/01/mssql-how-to-check-if-stored-procedure.html
Views: 308 Vis Dotnet
Oracle SQL Tutorial 19 - ON DELETE (SET NULL and CASCADE)
 
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Welcome everyone! Something you need to consider when you are creating foreign keys is what happens if you delete the parent? As a reminder, the parent is the row that has the value you are referencing in the row that has a foreign key. Why is this something important to consider? It's important because foreign keys need to protect us from two primary things, unacceptable INSERT statements, and unacceptable DELETE statements. Let's see what happens when we try to insert incorrect data into the table with the foreign key: INSERT INTO projects VALUES (1, 'Update website homepage', 'CalebCurry') The response tells us plainly that there is no such user in the users table. So this works correctly. Deleting data on the other hand works a bit differently because the database does not know what you want to do with the child row when you delete the parent from the parent table. By default, we will get an error message that prevents the parent from being deleted, but there are some other options. How do we configure this? This is where the ON DELETE statement comes in. We add the keywords ON DELETE right after the foreign key and then we can give it the option of CASCADE or SET NULL. CASCADE means that if we delete the parent, we are also going to delete the child. In our situation what that means is that if somebody creates a project in our project table and then that persons account gets deleted, all of the projects he owns will also be deleted. CASCADE: CREATE TABLE projects( project_id NUMBER, Project_name VARCHAR2(50 CHAR) UNIQUE, creator VARCHAR2(50 CHAR) NOT NULL, CONSTRAINT projects_pk PRIMARY KEY (project_id), CONSTRAINT projects_users_fk FOREIGN KEY (creator) REFERENCES users (username) ON DELETE CASCADE ) SET NULL will take the value in the child table and get rid of it. What you are left with is NULL. This means that we have an orphaned child. The first thought you might have is that it is a bad thing to have an orphaned child, but in databases that is not always so. In our application if we had it set to SET NULL, when a user account gets deleted the projects would remain in existence they would just lack a creator. This might be a good thing if you are concerned about the long term survival of a project, this might be the route you want to go. It ultimately depends on the application purpose. If you don't like CASCADE or SET NULL, you can leave the entire ON DELETE statement and just have Oracle throw an error when a parent is deleted. As for us, we are going to use ON DELETE CASCADE. We need to use this with extreme caution. If you are not careful, someday you will run a delete a row and that will cascade through you database deleting a bunch of stuff you didn't want to delete. Stuff happens, so make sure you back up your database every once in eternity. Now, in the last video we started with a database design that had three tables. We've only created two in this video. In the next video we are going to create the next one, which is a little special. Then we'll finish things up by adding some indexes. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me on Patreon! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 16256 Caleb Curry
Oracle NVL Function Explained with Examples
 
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https://www.databasestar.com/oracle-nvl-nvl2-logical-functions/ The Oracle NVL function allows you to check a value and return a different value if that value is NULL. It’s great for using another value if the first one is NULL or an optional value, for example people’s phone numbers. It’s also good alongside aggregate functions and grouping so you can see what the difference is between a subtotal row and an actual NULL value. The syntax of the Oracle NVL function is: NVL( check_value, replace_value ) The parameters are: - check_value (mandatory): This is the value that is displayed to the user. It is also the value that is checked for NULL. - replace_value (mandatory): This is the value that appears if the check_value is NULL. The function can use many different data types as parameters: string, date, or numeric. However, both parameters need to be the same type. For more information about the Oracle NVL function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-nvl-nvl2-logical-functions/
Views: 350 Database Star
How To Check Username Already Exist In Database In Asp.Net MVC | Jquery,Ajax
 
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Blog Post Link → http://abctutorial.com/Post/27/how-to-check-username-already-exist-in-database-in-aspnet-mvc-%7C-jqueryajax "Check Username Availability Using Jquery In MVC" ====================================================== In This Video Tutorial I Am Going To Show You, How to Check Username Availability In database That Means Username Already Exist In Database Or Not. I Hope This Is A Nice Tutorial For You And You Enjoy This Video , So Must Watch This Video ✪ ✪ ✪ https://youtu.be/SH4He-Vee5g Working Process : 00:11 Show Expected Output 00:27 Step 1 : : Click On Visual Studio Create A New Project 00:58 Step 2 : : Connect Database table 02:22 Step 3 : : Create A Controller (Write Code For Check Database Data) 06:20 Step 4 : : Create A View(Write Code For View And Pass The Inputed data From View To Controller ) 12:30 Run Project Connect With Us: Facebook: https://www.facebook.com/abctutorialbd Twitter: https://twitter.com/abctutorialbd?lan... GooglePlaus: https://plus.google.com/u/0/102073812... Subscribe And Watch The Video Again: https://youtu.be/SH4He-Vee5g Tags: Remote, validation, asp.net, mvc, RemoteAttribute, mvc3, mvc4,user already available, registration page, gmail, signup, asp.net user exist, asp.net check username availability,jquery ajax tutorial, jquery ajax tutorial for beginners, jquery ajax username availability checker, check if username is taken, check if username is available, check if username is available ajax, check if username is taken ajax, check if username exists in database asp.net, check if username exists in database c#, jquery tutorial, jquery tutorial for beginners,
Views: 10526 abctutorial
The Magic of SQL: The Magical Changing Row
 
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To change the value of a database column normally you need to execute an update statement. In this video Chris uses SQL magic to modify the value of a row without issuing any insert, updates or deletes! Watch the video to find out how ============================ The Magic of SQL with Chris Saxon Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 2852 The Magic of SQL
Java MySQL Database Tutorial - 9 - How To Check Whether a Value Exists or Not In a Table - Hindi
 
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Java MySQL Database Tutorial In Hindi Language Netbeans IDE Website Link: https://netbeans.org/downloads/ MySQL Connector JAR File Website : https://dev.mysql.com/downloads/connector/j/3.1.html XAMPP Website Link: https://www.apachefriends.org/index.html Java JDK 8 Website Link : http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html How To Download Netbeans IDE Video : https://www.youtube.com/watch?v=fu7rAlfLp4I How To Download XAMPP Video : https://www.youtube.com/watch?v=5TbPMlIJxrI MySQL Tutorial : https://www.youtube.com/playlist?list=PLNHw_0qv1zy8-nAi3qt8ppHvsFhJfMHqQ Java Tutorial : https://www.youtube.com/playlist?list=PLNHw_0qv1zy8WZ0kVZOsfPhpfLnTXQHX7 Java Swing GUI Tutorial : https://www.youtube.com/playlist?list=PLNHw_0qv1zy-cVdEX6HqJX2a8ZLHbG3Ox
Views: 415 Ganguly Tech
MSSQL - Sql server - insert into table if record doesn't exist
 
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More info http://howtodomssqlcsharpexcelaccess.blogspot.com/2018/06/mssql-sql-server-insert-into-table-if.html
Views: 95 Vis Dotnet
Part 5   SQL query to find employees hired in last n months
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/05/part-5-sql-query-to-find-employees.html This question is asked is many sql server interviews. If you have used DATEDIFF() sql server function then you already know the answer. -- Replace N with number of months Select * FROM Employees Where DATEDIFF(MONTH, HireDate, GETDATE()) Between 1 and N
Views: 173463 kudvenkat
SQL Tutorial - 13: Inserting Data Into a Table From Another Table
 
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In this tutorial we'll learn to use the INSERT Query to copy data from one table into another.
Views: 252322 The Bad Tutorials
SSIS Tutorial Part 60-Perform Upsert  (Update/Insert  SCD1) by Lookup Transformation in SSIS Package
 
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SSIS Tutorial Scenario: Let's say we have to load a dimension table from text file. Our business Key is SSN. We need to insert new records depending upon values of SSN column, If any new then we need to insert this records. If SSN already existing in Table then we need to find out if any other column is changed from Source columns values. If that is true then we have to update those values. What we will learn in this video How to Read the data from Flat file in SSIS Package How to perform Lookup to Find out Existing or Non Existing Records in Destination Table From Source How to Insert new Records by using OLE DB Destination How to update existing Records by using OLE DB Command Transformation in SSIS Package Link to the blog post for this video with script if used http://sqlage.blogspot.com/2015/05/perform-upsert-updateinsert-scd1-by.html Check out our Full Step by Step SQL Server Integration Services(SSIS) Tutorial http://www.techbrothersit.com/2014/12/ssis-videos.html
Views: 33525 TechBrothersIT
Oracle SQL Tutorial 16 - Parent Child Relationships
 
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So far in this series we have discussed database design, creating tables, and constraints. We've brought up the concept of foreign keys, but we have not explained how to create them. That is the goal of this video and the upcoming videos. We want to study those foreign keys! Let's make them not so foreign. Let's learn the proper way to define a foreign key. As a reminder, a foreign key is a column that references a column of another table. The column it references must either be a primary key, or have the UNIQUE constraint. This means that every value inside of the column that is labeled as a foreign key, there must be that value in some row of the referenced column. As an example, imagine that we have the users table, and we have a table service_requests. We could have a column in the service_request that references a column in the users table. Usually this would be the primary key that is referenced, but there is nothing stopping you from referencing a unique column. Just for fun, let's go through an example using the username column. If we have a service_requests table, every single row within the table is going to be what some would consider an instance of a service_request. This means that the table columns are like the blueprint for what a service request looks like and then each row is an individual service request. If we have one of the columns labeled as a foreign key to the username of the users table, what does that mean practically? It means that for a single row, the value for that column must be a value that exists in the users table. We could have a service_request submitted by a user with the username of Yoloswagman. This means that there must be a row inside of the users table that has the value Yoloswagman for the username column. This brings up the concept of parent and child relationships. Yoloswagman in this situation is the parent, and his service request is the child. When we draw it out, it makes sense why a primary key must be UNIQUE. If we had two Yoloswagmans, the child would not know which column is the parent. The same applies if we were using IDs and we had So remember, always reference a primary key or a column with the UNIQUE constraint. Now, I have a question for you. Do foreign keys automatically have the UNIQUE constraint, just like primary keys? The answer is no. A parent row can have many child rows. It makes sense because the user could submit multiple service requests. Can we force the column to be unique? Absolutely. If that was the case, the user could only make one service request. Another question. Do foreign keys automatically have the NOT NULL constraint, just like primary keys? The answer is no. Essentially what this means is that a child could be created with no parent. Can we force the column to be NOT NULL? Absolutely. It is ok in some situations to allow the row to be null, but in this situation it makes no sense. It would be wise for us to add that constraint ourselves. So now that you understand some more differences between primary and foreign keys and parent child relationships, take all of these questions into consideration when you are creating foreign keys. In the next video, we are going to start a small project that is going to require multiple tables. We'll take a video to design our structure and then we'll get to creating those foreign keys in Oracle SQL Developer. Stick around and if you like these videos please be a serious supporter and subscribe to my channel. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ HELP ME! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 12763 Caleb Curry
How to check if a file or folder exists | Python Examples
 
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Buy Me a Coffee? https://www.paypal.me/jiejenn/5 Your donation will help me to continue to make more tutorial videos! Python is a great general purpose programming language. In this video I will teach you how to check whether if a file or folder exist in a Python script. Visit my blog for more tutorial articles and videos https://BusinessAndData.org For questions, please email me at [email protected] #PythonTutorial LearnPythonProgramming #PythonProgramming
Views: 85 Jie Jenn
HOW TO CHECKING IF TEMPORARY TABLE EXISTS IN TEMPORARY DATABASE IN SQL SERVER
 
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HOW TO CHECKING IF TEMPORARY TABLE EXISTS IN TEMPORARY DATABASE IN SQL SERVER HD Video
Views: 716 Sourn Sarim
Java prog#105. Take count of  all rows of one column from sql in java netbeans
 
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------------------Online Courses to learn---------------------------- Java - https://bit.ly/2H6wqXk C++ - https://bit.ly/2q8VWl1 AngularJS - https://bit.ly/2qebsLu Python - https://bit.ly/2Eq0VSt C- https://bit.ly/2HfZ6L8 Android - https://bit.ly/2qaRSAS Linux - https://bit.ly/2IwOuqz AWS Certified Solutions Architect - https://bit.ly/2JrGoAF Modern React with Redux - https://bit.ly/2H6wDtA MySQL - https://bit.ly/2qcF63Z ----------------------Follow--------------------------------------------- My Website - http://www.codebind.com My Blog - https://goo.gl/Nd2pFn My Facebook Page - https://goo.gl/eLp2cQ Google+ - https://goo.gl/lvC5FX Twitter - https://twitter.com/ProgrammingKnow Pinterest - https://goo.gl/kCInUp Text Case Converter - https://goo.gl/pVpcwL -------------------------Stuff I use to make videos ------------------- Stuff I use to make videos Windows notebook – http://amzn.to/2zcXPyF Apple MacBook Pro – http://amzn.to/2BTJBZ7 Ubuntu notebook - https://amzn.to/2GE4giY Desktop - http://amzn.to/2zct252 Microphone – http://amzn.to/2zcYbW1 notebook mouse – http://amzn.to/2BVs4Q3 ------------------Facebook Links ---------------------------------------- http://fb.me/ProgrammingKnowledgeLearning/ http://fb.me/AndroidTutorialsForBeginners http://fb.me/Programmingknowledge http://fb.me/CppProgrammingLanguage http://fb.me/JavaTutorialsAndCode http://fb.me/SQLiteTutorial http://fb.me/UbuntuLinuxTutorials http://fb.me/EasyOnlineConverter sql query - how to count values in a row sql Get row count of a resultset in java SQL COUNT Function java Java get number of rows in resultset Counting Rows with COUNT() java
Views: 20908 ProgrammingKnowledge
HAVING clause and difference with GROUP BY & WHERE clause in SQL statement
 
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Using HAVING clause and difference with GROUP BY & WHERE clause in SQL statement Link for scripts on my blog: https://sqlwithmanoj.com/2015/05/23/sql-basics-difference-between-where-group-by-and-having-clause/ Check the whole "SQL Server Basics" series here: https://www.youtube.com/playlist?list=PLU9JMEzjCv14f3cWDhubPaddxRvx1reKR Check my SQL blog at: http://sqlwithmanoj.com/ Check my SQL FB Page at: https://www.facebook.com/sqlwithmanoj
Views: 65893 SQL with Manoj
Oracle SQL Tutorial 22 - Why Primary Keys Shouldn't Change
 
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In the last video I mentioned that with our database design it is important to make sure that nobody tries to update a user's username. What happens if they do? Nothing horrible, Oracle will just throw an error. That's not such a big deal, but if you are hoping to make some kind of application that allows someone to change their username, this is not the best set up. Why? If you look at the projects table, we have a foreign key that references the username. Let's assume for a moment that Oracle allows you to do anything with your data. That means that if a user updates their username, there will be projects created by users that don't exist. Or a user could change their name to the previous owner. To fix this problem, we would need something such as an ON UPDATE CASCADE command for our foreign key. That would mean that if the user updated their username, the columns that reference that username would also update to the new value. This exists in some database management systems, but this does not exist in Oracle at the time of this video. How do we get around this problem? I'm sure we could conjure up something to allow us to update the username, but the easiest solution is to reference the user_id instead of the username. That way, when the username is updated, nothing changes inside of the foreign key. As a general rule, primary keys should never change. Foreign keys CAN change, but they should not change because a primary key changed. So, if we did happen to use a username as a column, it would be frowned upon if the username had to change because the column it references changes. However, it would be acceptable to change the foreign key if we needed to point to a new entity in the users table. Even if a username is never intended to change, these complications bother a lot of people. You can mitigate these problems by only referencing surrogate keys in foreign keys. This has the downside though that when you retrieve the data, you are going to have to do more work to make the data readable. For example, we had a table that was called project_users. It is essentially a table that says what users are part of what projects. We could have the foreign keys reference the project's name and the user's username. Then when you could say SELECT * FROM project_users. The data would be completely readable without doing anything. If you switch to only referencing surrogate primary keys, you will have a bunch of random numbers that don't mean anything and will have to be joined with other tables…which is really super frustrating when later you have to join a thousand tables to read anything. Which side do you prefer? Pick a side. Choose wisely. I'll see you all in the next video ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ HELP ME! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 5845 Caleb Curry
How to Resolve Oracle SQL Parent Key Not Found (ORA-02291)
 
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In this video, we’ll explain what the ORA-02291 “parent key not found” error is, see an example, and look at how to resolve it. This error usually happens when we try to insert data into a table. It looks like this: Error is: ORA-02291: integrity constraint (constraint_name) violated - parent key not found So what does this error mean? It means we’re trying to insert data into a child table, and there is no related record in the parent table. If a foreign key has been set up to enforce this relationship, there needs to be a parent to insert a child that refers to it. Watch the video to see an example of this error as well as how to resolve it. For more information on Oracle SQL, refer to the Database Star website here: https://www.databasestar.com/
Views: 2688 Database Star
Difference between Case and Decode
 
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This video tutorial explains on how case statement and decode function are different from each other. Though both of them are used in giving the if-then-else conditional functionality to sql statement, they differ much from each other, this video will walk through each of the difference with appropriate examples. If you want more such videos of exciting and amazing 'difference between' concepts, check out the links below : char and varchar2 : https://youtu.be/039qzwjWf4k replace and translate : https://youtu.be/HKYF77BGzOE procedure and function : https://youtu.be/q3LmOenL120 in and exists : https://youtu.be/REX4IjRYlFw rank and dense_rank : https://youtu.be/WGSX998hZ9M delete and truncate : https://youtu.be/u76wMm2byXo %type and %rowtype : https://youtu.be/MlLUFeZ_3eM
Views: 12444 Kishan Mashru
MySQL Tutorial 1 - Remove Duplicate Rows from MySQL Table
 
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How to remove duplicate rows from a MySQL database table. The process should be similar for other kinds of databases I imagine. Have a wonderful day and happy coding!
Views: 19654 Anthony Vipond
PL/SQL tutorial 36: Cursor Based Record Datatype variables part 2 By Manish Sharma
 
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www.RebellionRider.com present PL/SQL tutorial 36 on How To Handle Multiple values using Cursor Based Record Datatype Variables in Oracle Database By Manish Sharma ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/cursor-record-2 Previous Tutorial ► Cursor Records Part 1 https://youtu.be/mVNa3QomRDM ► Cursor For Loop https://youtu.be/abgVNjPaMVA ► ------------------------------------------------------------------------- ►►►Let's Get Free Uber Cab◄◄◄ Use Referral Code UberRebellionRider and get $20 free for your first ride. ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ ___Facebook Official Page___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 18242 Manish Sharma
Oracle NVL2 Function
 
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https://www.databasestar.com/oracle-nvl-nvl2-logical-functions/ The Oracle NVL2 function is an extension of the NVL function and can be used to handle NULL values. It allows you to specify a value to check for NULL, a separate value to return if the value is NULL, and another value to return if the first value is not NULL. It’s very similar to NVL but allows for more flexibility. The syntax for NVL2 is: NVL2( value_to_check, value_if_not_null, value_if_null ) What are these parameters: Value_to_check is the value the function checks to see if it is NULL. Value_if_not_null is the value to return if the first value, value_to_check, is not NULL. Value_if_null is the value to return if the first value, value_to_check, is NULL. These parameters can have almost any data type (the second and third parameter can’t be a LONG data type). Oracle will determine the data type from the supplied parameters. There are quite a few of these conditional checking functions in Oracle, so the one to use would depend on your needs. But it’s good to know this function exists. For more information about the Oracle NVL2 function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-nvl-nvl2-logical-functions/
Views: 267 Database Star
Stored Procedure - IF ELSE IF ELSE
 
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Stored Procedure - IF ELSE IF ELSE by Professor Saad Yousuf DB2 UDB, Oracle, SQL Server, MySQL
Views: 5983 Professor Saad
Procedure Cursor Exists N IN keywords
 
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Sql Server 2008 R2 Procedure Create & Using Cursor
Views: 26 Shivashwor Joshi
How to check for the existence of record into the database?
 
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In this video,we are going to cover How to check for the existence of record into the database? To buy the video DVD, source code and ebook, please go to http://www.itfunda.com/Howto
7 - Checking before insert, Stop duplicate entries  - Java Swing Project
 
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In this video we are going to write code to stop duplicate entries, it happen when we insert form data in database table directly, What we need to do is that we have to insert in database table before checking with sql query. Download Source Code : https://github.com/KamaleshSah/Bus-Managment-Application
Views: 8336 KAMLESHUTUBE