General MySQL Oracle SQL Server

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"DROP LOGIN" - Deleting a Login Name in SQL Server
How To Delete a Login Name in SQL Server? If you don't want to keep a login name any more, you should delete it by using the "DROP LOGIN" statement as shown in this tutorial example: -- Login with "sa" DROP LOGIN Dba_Login; GO Command(s) completed successfully. -- View login names SELECT name, sid, ... 2016-10-19, 2880🔥, 0💬

Creating a Logon Trigger in Express Edition in SQL Server
Can You Create a Logon Trigger in SQL Server 2005 Express Edition in SQL Server? Can you create a logon trigger in SQL Server 2005 Express Edition? The answer is no. LOGON is not a supported event type in Express Edition. The script below shows you the error message when you try to create a logon tr... 2016-10-22, 2879🔥, 0💬

"GRANT EXECUTE" Statements - Granting EXECUTE permission in SQL Server
How to grant a permission using "GRANT EXECUTE" statements in SQL Server? This is the fourth tutorial of a quick lesson on creating login and configure users for databases with Transact-SQL statements. Granting a user access to a database involves three steps. First, you create a login. The login le... 2016-11-27, 2875🔥, 0💬

SCROLL - Creating Cursors for Backward Scrolling in SQL Server
How To Create a Scrollable Cursor with the SCROLL Option in SQL Server Transact-SQL? SQL Server offers two scrolling option on cursors: 1. FORWARD_ONLY - The cursor can only be scrolled forward with "FETCH NEXT" statements. In another word, you can only loop through the cursor from the first row to ... 2016-10-17, 2875🔥, 0💬

Concatenating Two Binary Strings in SQL Server
How To Concatenate Two Binary Strings Together in SQL Server Transact-SQL? SQL Server 2005 allows to concatenate two binary strings into a single string with the (+) operator. The following tutorial exercise shows you some binary string concatenation examples: -- Concatenating two binary string lite... 2017-03-07, 2873🔥, 0💬

Types of Data Literals in SQL Server Transact-SQL
What are different types of data literals supported in SQL Server Transact-SQL? There are 8 types of data literals supported in SQL Server Transact-SQL: 1. Integer Number Literals - Sequences of numbers prefixed with +/- sign if needed. Integer number literals are used to represent integer values. F... 2017-05-20, 2872🔥, 0💬

SQL Server TCP/IP Connection Info
What information is needed for a client tool or application to connect to a SQL Server database using the TCP/IP protocol? In order to connect to a SQL Server database using the TCP/IP protocol, you need to know the following information: 1. Host Name - The name of the hosting computer where the SQL... 2024-08-14, 2849🔥, 0💬

Configuring ODBC Connection and DSN for SQL Servers
A collection of 13 FAQs on connecting SQL Server via an ODBC DSN setting. Clear explanations and tutorial exercises are provided on creating new DSN with the SQL Server ODBC driver; starting SQL Server Browser Service; enabling TCP/IP protocol on SQL Server; verifying TCP/IP port numbers; testing OD... 2024-08-14, 2848🔥, 0💬

Variables and Data Types in SQL Server Transact-SQL
Where to find answers to frequently asked questions on variables and data types in Microsoft SQL Server Transact-SQL? I am new to Transact-SQL and SQL Server. Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on variables and data types in Microsoft SQL Se... 2017-04-22, 2848🔥, 0💬

Passing Values to Stored Procedure Parameters in SQL Server
How To Provide Values to Stored Procedure Parameters in SQL Server Transact-SQL? If a stored procedure is created with parameters, you need pass values to those parameters when calling the stored procedure with one of two formats listed below: -- Passing values only EXEC procedure_name value_1, valu... 2016-12-28, 2845🔥, 0💬

"@@FETCH_STATUS" - Looping through Result Set in SQL Server
How To Loop through the Result Set with @@FETCH_STATUS in SQL Server Transact-SQL? The FETCH statement only returns one row from the result set. If you want to return all rows, you need to put the FETCH statement in a loop. A simple way to stop the loop to check the system variable @@FETCH_STATUS, w... 2016-10-17, 2844🔥, 0💬

OUTPUT - Defining Output Parameters in Stored Procedures in SQL Server
How To Define Output Parameters in Stored Procedures in SQL Server Transact-SQL? Sometime a stored procedure not only want to take input values from the calling statement batch, but it also want to send output values back to the calling statement batch. This can be done by defining output parameters... 2016-12-28, 2839🔥, 0💬

"CREATE DATABASE" Statement - Creating New Databases in SQL Server
How to create new databases with "CREATE DATABASE" statements in SQL Server? This is the first tutorial of a quick lesson on creating database objects with Transact-SQL statements. This lesson shows you how to create a database, create a table in the database, and then access and change the data in ... 2016-12-02, 2837🔥, 0💬

Start and End of Statement in SQL Server Transact-SQL
How to start and end a statement in SQL Server Transact-SQL? Here are some simple rules about writing statements in SQL Server Transact-SQL: A Transact-SQL statement must be started with a pre-defined statement keyword. A Transact-SQL statement must be ended with a new line (/n) or a semicolon (;) c... 2017-05-29, 2835🔥, 0💬

Finding the Login Name Linked to a Given User Name in SQL Server
How To Find the Login Name Linked to a Given User Name in SQL Server? If you know a user name in a database and you want to find out which login name is linked this user name, you need to check the Security ID (SID) of the user name based on the following rules: Each login name is associated a uniqu... 2017-08-25, 2831🔥, 0💬

"sp_help" - Getting a List of Columns in a View in SQL Server
How To Get a List of Columns in a View using the "sp_help" Stored Procedure in SQL Server? Another way to get a list of columns from a view is to use the "sp_help" stored procedure. "sp_help" returns more than just a list of columns. It returns: the view information, the column information, the iden... 2016-11-05, 2823🔥, 0💬

COLLATE Clause in SQL Server Transact-SQL
How To Specify the Collation for a Character Data Type in SQL Server Transact-SQL? If you do not want to use the default collation provided by the SQL Server, you can use the "COLLATE collation_name" clause to specify a different collation to be used at different levels: Database Level - Used in CRE... 2017-05-13, 2821🔥, 0💬

Using Old Values to Define New Values in UPDATE Statements in SQL Server
How to use old values to define new values in UPDATE statements in SQL Server? If a row matches the WHERE clause in a UPDATE statement, existing values in this row can be used in expressions to provide new values in the SET clause. Existing values are represented by column names in the expressions. ... 2016-11-02, 2819🔥, 0💬

Creating Stored Procedures with Statement Blocks in SQL Server
How To Create a Stored Procedure with a Statement Block in SQL Server Transact-SQL? If you are creating a stored procedure with multiple statements, it's better to use "BEGIN ... END" to group all statements into a single statement block. The tutorial exercise below shows you some good examples: USE... 2017-01-05, 2817🔥, 0💬

"sp_columns" - Getting a List of Columns in a Table in SQL Server
How To Get a List of Columns using the "sp_columns" Stored Procedure in SQL Server? If you have an existing table, but you don't remember what are the columns defined in the table, you can use the "sp_columns" stored procedure to get a list of all columns of the specified table. The following tutori... 2016-11-17, 2815🔥, 0💬

SCHEMABINDING - Binding Views to Underlying Tables in SQL Server
How To Bind a View to the Schema of the Underlying Tables in SQL Server? By default, views are not bound to the schema of the underlying tables. This means that SQL Server will allow you to change underlying table's schema any time. For example, you can drop the underlying table while keep the view.... 2016-11-03, 2815🔥, 0💬

What Is a Statement in SQL Server Transact-SQL
What is a statement in SQL Server Transact-SQL? A statement in SQL Server Transact-SQL is a single smallest execution unit. Here are some examples of Transact-SQL statements: "PRINT 'Hello World!';" - An output statement that print a character string to the console. "SELECT GETDATE();" - A query sta... 2017-05-29, 2806🔥, 0💬

Converting DATETIME and NUMERIC Values in SQL Server
Are DATETIME and NUMERIC Values Convertible in SQL Server Transact-SQL? Are datetime and numeric value convertible? The answer is yes. Here are the main rules on DATATIME and NUMERIC value conversions: During the conversion a DATETIME value will be treated as a NUMERIC value with the number of days ... 2017-02-22, 2803🔥, 0💬

Default Schema of Your Login Session in SQL Server
What Is the Default Schema of Your Login Session in SQL Server? When you login to a SQL Server and select a database to use, SQL Server will assign your login session a default schema. The schema name can be omitted when you refer to objects in the default schema. Here is what you should remember ab... 2016-10-22, 2797🔥, 0💬

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General MySQL Oracle SQL Server