General MySQL Oracle SQL Server

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What Is Variable in SQL Server Transact-SQL
What is a variable in SQL Server Transact-SQL? A variable in Transact-SQL is a symbolic name representing a memory storage that holds a piece of data. A variable has the following the components: 1. Variable name - A symbolic name to represent the variable. Variable names in Transact-SQL must starts... 2017-04-22, 3269🔥, 0💬

Using Wildcard Characters in LIKE Operations in SQL Server
How To Use Wildcard Characters in LIKE Operations in SQL Server Transact-SQL? Wildcard character '%' can be used in the pattern string for the LIKE operator to match any string of zero or more characters. The following example uses '%Sport% Store' to search all company names that has a partial word ... 2017-01-21, 3268🔥, 0💬

Verify Time Precision in SQL Server Transact-SQL
How to verify the precession of the server system time in SQL Server Transact-SQL? You can run a WHILE loop to check the precision of server system time in Transact-SQL as shown below: DECLARE @var DATETIME2(7); DECLARE @count INT = 0; WHILE @count&lt;100 BEGIN SET @count = @count + 1; SET @var ... 2017-02-22, 3263🔥, 0💬

What Are Comparison Operations in SQL Server
What Are Comparison Operations in SQL Server Transact-SQL? Comparison operations return Boolean values by comparing the relative positions of two operands. SQL server supports the following comparison operations: = (Equal To): Returns Boolean true, if two operands are equal in value. &gt; (Great... 2017-01-29, 3259🔥, 0💬

What Is a SELECT Query Statement in SQL Server
What Is a SELECT Query Statement in SQL Server? The SELECT statement is also called the query statement. It is the most frequently used SQL statement in any database application. SELECT statements allows you to retrieve data from one or more tables or views, with different selection criteria, groupi... 2016-10-26, 3259🔥, 0💬

Generating CREATE FUNCTION Scripts on Existing Functions in SQL Server
How To Generate CREATE FUNCTION Script on an Existing Function in SQL Server Transact-SQL? If you want to know how an existing user defined function was created, you can use SQL Server Management Studio to automatically generate a "CREATE FUNCTION" script The following tutorial shows you how to do t... 2016-12-18, 3257🔥, 0💬

Creating and Managing Triggers in SQL Server
Where to find answers to frequently asked questions on Creating and Managing Triggers in SQL Server? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on Creating and Managing Triggers in SQL Server. Clear explanations and tutorial exercises are provid... 2016-10-25, 3254🔥, 0💬

Downloading and Installing SQL Server 2005 Books Online in SQL Server
How to download and install SQL Server 2005 Books Online in SQL Server? 1. Go to the SQL Server 2005 Books Online download page . 2. Click the download button, the File Download box shows up. Save the download file to c:\temp. 3. Double click on the downloaded file: c:\temp\SqlServer2K5_BOL_Feb20 07.... 2016-12-04, 3252🔥, 0💬

Selecting Some Specific Rows from a Table in SQL Server
How To Select Some Specific Rows from a Table in SQL Server? If you don't want select all rows from a table, you can specify a WHERE clause to tell the query to return only the rows that meets the condition defined in the WHERE clause. The WHERE clause condition is a normal Boolean expression. If an... 2016-10-26, 3252🔥, 0💬

Attaching AdventureWorksLT Physical Files to the Server in SQL Server
How to attach AdventureWorksLT physical files to the server in SQL Server? After installed the sample database AdventureWorksLT, you need to attach it to your SQL server to make it available by follow this tutorial: EXEC sp_attach_db @dbname=N'AdventureWorksLT', @filename1=N'C:\Program Files\Microso... 2016-12-02, 3251🔥, 0💬

"ALTER LOGIN" - Changing the Password of a Login Name in SQL Server
How To Change the Password of a Login Name in SQL Server? If a developer lost the password of his or her login name, you can reset the password with the "ALTER LOGIN" statement as shown in this tutorial example: -- Login with sa ALTER LOGIN FYI_DBA WITH PASSWORD = 'fyicenter'; GO Command(s) complete... 2016-10-20, 3250🔥, 0💬

Approximate Numeric Literals in SQL Server Transact-SQL
What are approximate numeric literals supported in SQL Server Transact-SQL? Approximate numeric literals in Transact-SQL are numbers written in scientific notation formats. Approximate numeric literals are used to provide values to approximate numeric variables or table columns like LOAT(24), DOUBLE... 2017-05-05, 3249🔥, 0💬

What Are Stored Procedures in SQL Server
What Are Stored Procedures in SQL Server Transact-SQL? A stored procedure is a collection of Transact-SQL statements that stored in the SQL Server. A stored procedure can be executed later with an EXEC statement. SQL Server supports stored procedures with the following features: 1. Stored procedures... 2017-01-11, 3248🔥, 0💬

"ALTER FUNCTION" - Modifying Existing Functions in SQL Server
How To Modify an Existing User Defined Function in SQL Server Transact-SQL? If you find a mistake in an existing function previously created, you can drop (delete) it and create it again correctly. But dropping a function may affect other database objects who are depending on this function. So the b... 2016-12-18, 3248🔥, 0💬

"CREATE FUNCTION" - Creating User Defined Functions in SQL Server
How To Create a Simple User Defined Function in SQL Server Transact-SQL? If you want to create a simple user defined function, you can use the "CREATE FUNCTION" command with a statement block in a simple format as shown in below: CREATE FUNCTION function_name() RETURNS data_type AS BEGIN statement_1... 2016-12-24, 3244🔥, 0💬

Downloading and Installing PHP on Windows
How To Download and Install PHP on Windows? PHP is one of the most popular languages to develop dynamic Web pages. It supports all major database servers, including: MySQL, MS SQL Server, Oracle, mSQL, Sybase, etc. If you are developing a Web application that uses PHP and needs to access MS SQL Serv... 2024-04-29, 3237🔥, 0💬

Index Slowing Down INSERT Statements in SQL Server
Does Index Slows Down INSERT Statements in SQL Server? If you want to see the impact of indexes on INSERT statements, you can repeat the same insert script on the table "fyi_links" of the same structure with two indexes: one non-clustered index on column "url" and one non-clustered index on column "... 2016-11-13, 3235🔥, 0💬

Declaring and Using Cursor Variables in SQL Server
How To Declare and Use Cursor Variables in SQL Server Transact-SQL? There are two ways to representing a cursor: 1. A cursor name - A static name representing a cursor object. A cursor name should be linked to a cursor object in the DECLARE statement. 2. A cursor variable name - A variable name poin... 2016-10-17, 3235🔥, 0💬

Commonly Used MSSQL Functions in PHP
What Are Commonly Used MSSQL Functions in PHP? If you look at the PHP 5 manual, you will see a group of functions listed under the Microsoft SQL Server Functions section. The commonly used functions are: mssql_connect � Open MS SQL server connection mssql_close � Close MS SQL Server connection mssql... 2024-04-07, 3233🔥, 0💬

Adding a New DSN with the ODBC Driver for SQL Server
How To Add a New DSN with the ODBC Driver for SQL Server? Assuming that the ODBC driver for SQL Server has been installed as part of the Windows system, the next step of setting up ODBC connection to SQL Server is to create a new DSN (Data Source Name) with the ODBC Data Source Administrator: Go to ... 2024-08-06, 3231🔥, 0💬

Mathematical Functions Supported by SQL Server 2005 in SQL Server
What Are the Mathematical Functions Supported by SQL Server 2005 in SQL Server Transact-SQL? SQL Server 2005 supports 23 mathematical functions: ABS, ACOS, ASIN, ATAN, ATN2, CEILING, COS, COT, DEGREES, EXP, FLOOR, LOG, LOG10, PI, POWER, RADIANS, RAND, ROUND, SIGN, SIN, SQRT, SQUARE, and TAN. The ret... 2017-03-22, 3224🔥, 0💬

Casting Numeric Values to DATETIME in SQL Server Transact-SQL
Can I cast numeric values to DATETIME values in SQL Server Transact-SQL? Yes, you can cast numeric values to DATATIME values in Transact-SQL. The implicit casting rules are for numeric values to DATETIME values are: Numeric values are casted linearly to DATETIME values. Decimal 0 represents 1900-01-... 2017-04-15, 3223🔥, 0💬

Passing Name-Value Pairs as Parameters in SQL Server
What Are the Advantages of Passing Name-Value Pairs as Parameters in SQL Server Transact-SQL? When calling a stored procedure defined with parameters, you can pass values to those parameters in two ways: Passing only values in the same order as parameters defined in the stored procedure. Passing nam... 2016-12-28, 3220🔥, 0💬

"ALTER PROCEDURE" - Modifying Existing Stored Procedures in SQL Server
How To Modify an Existing Stored Procedure in SQL Server Transact-SQL? If you find a mistake in an existing stored procedure previously created, you can drop (delete) it and create it again correctly. But dropping a stored procedure may affect other database objects who are depending on this stored ... 2017-01-05, 3218🔥, 0💬

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General MySQL Oracle SQL Server