sql server if else if

To introduce you to the use of if esle in SQL Server stored procedures for your reference. There are two tables in the database, the primary key for table A is automatically growing and is the foreign key of table B and is allowed to be empty Now

emule resources can also be downloaded with thunder The following is a list of files that are shared by users, and you can download them by clicking on them after you install emule [0 Basic science sql.server.2005

1. IF ELSEcannot be used in select, only blocks, such as:IF ...BEGIN...ENDelse (note that there is no else if, to be implemented can only be judged in the following block)BEGIN...ENDReference: Https://msdn.microsoft.com/en-us/library/ms182587.aspx2.

1 --declaring Variables2 Declare @age int3 Declare @name varchar( -)4 5 6 --Assignment (constant value)7 Set @age= -8 Select @name='Zhang San'9 Ten One --isolated from database and assigned value A Set @name=(SelectStudentname

MS SQL Server Query optimization methodThere are many reasons for the slow speed of queries, which are common1, no indexes, or no indexes (this is the most common problem with query slowness, is the flaw in programming)2, I/o throughput is small,

From http://download.microsoft.com/download/e/5/3/e53a74e2-9f13-4736-b263-df72af00a8f0/ReadmeSQLEXP2005Advanced.htm#_3462_setup_issues_238p 3.0 Installation Problems This section describes how to install SP1. SQL Server 2005 express edition

After so many years of mixing in the forum, we have seen an obvious trend: more and more netizens are using VFP and SQL server for the system. Many people are concerned about how to operate or manage SQL Server from VFP. You can use views, SPT, or

Data Management esweb system data Management Data backup Data restore Data optimization /*--------------Interface--------------*/if (!$_post[' act ') {/*----------------------*/$MSGS []= "Server backup directory is $backup";$MSGS []=] for larger

SQL determines if stored procedure exists SQL code for database tutorialif exists(Select * fromsys.databaseswhereName=' database name ')Drop Database [Database name] if exists(Select * fromsys.databaseswhereName=' database name ')Drop Database

1. Introduction to the problem:In general, when using a program to connect to a database, when the database server does not exist, or the database server does not start,Causes the database connection to fail, which can take a long time. Therefore,