rowcount 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.

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 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

Today is ready to use the project to increase the paging function, the original is too limited, so the Internet to find some information recorded, the front is the use of others to summarize, the following is their own test results, haha, testing to

SQL Enhanced three Merge (using Insert,update,delete in a single statement) in Server 2008SQL Server 2008 provides an enhanced SQL command merge, usage see msdn:http://msdn.microsoft.com/zh-cn/library/bb510625.aspxFunction: Performs an INSERT,

First, top alternative set RowCountIn traditional SQL statements prior to SQL Server 2005, the top statement was not supported for local variables. See http://www.cnblogs.com/downmoon/archive/2007/12/29/1019686.htmlYou can use set RowCount at this

Create a table:1 CREATE TABLE [testtable] (2 [ID] [int] IDENTITY(1,1) not NULL ,3 [FirstName] [nvarchar]( -) COLLATE Chinese_prc_ci_asNULL ,4 [LastName] [nvarchar]( -) COLLATE Chinese_prc_ci_asNULL ,5 [Country] [nvarchar]( -) COLLATE Chinese_prc_

One, top instead of SET ROWCOUNT In traditional SQL statements prior to SQL Server 2005, the top statement does not support local variables. See Http://www.jb51.net/article/27089.htm Set ROWCOUNT can be used at this time, but in SQL Server 2005/2008,

One of the power of T-SQL is the large volume of operation data. However, in some scenarios, the number of rows affected by T-SQL needs to be limited. For example, in the past, Yilong encountered a scenario where too many rows were changed at a time

1. Select statement Constituent element 1.1 SELECT *Avoid using SELECT *When you want to list all columns in the SELECT clause, it is a convenient way to refer to ' * ' Using a dynamic SQL column. Unfortunately, this is a very inefficient approach.