if in select statement sql server 2008

Directory 1. Programming with the Transact-SQL language 1.1. Data Definition Language DDL 1.2. Data manipulation language DML 1.3. Data Control Language DCL 1.4.transact-sql Language Basics 2.

Reference: http://www.cnblogs.com/chillsrc/p/3383098.htmlIn a real-world operation, in SQL SERVER 2008, a new user has been created to access several tables that have been made by another user, but cannot be queried, prompting the object name '

Overview Database mirroring is a software-based solution for high availability of databases. It maintains two identical copies of a database, each of which is placed in separate instances of the SQL Server database. It is recommended that you use

SQL Server 2008 provides an enhanced SQL command merge for use in the msdn:http://msdn.microsoft.com/zh-cn/library/bb510625.aspx Function: Inserts, updates, or deletes on the target table based on the results of joining with the source table. For

This article belongs to theUnderstand the mysteries of performance-slow in applications, fast in SSMS"seriesNext: Understanding the Mysteries of performance-application slow, SSMs fast (5)--case: How to deal with parameter sniffingWe put aside the

SQL Server 2008 is the most commonly used SQL database on Windows, and the 2008 installation mechanism is based on the framework rewrite, which is very time-consuming (my laptop configuration is OK.) ^_^). But do not need the original ISO or hidden

For statements to run, there are other factors to consider, in addition to the execution plan itself, such as the compile time of the statement, the execution time, the number of disk reads, and so on.If the DBA is able to run the problem statement

1. LockConcurrency problems occur when multiple users modify the same data at the same time, and a transaction can be used to solve the problem. However, in order to prevent other users from modifying the data in another transaction that is not yet

In a real-world operation, in SQL SERVER 2008, a new user has been created to access several tables that have been made by another user, but cannot be queried, prompting the object name ' Customentry ' to be invalid. ”。 When the schema name is

SQL has many built-in functions that can be used for counting and computation.Syntax of the functionThe syntax for the built-in SQL function is:SELECT function (column) from tableTypes of functionsIn SQL, there are several kinds of basic function