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Reprint: http://new-restart.iteye.com/blog/1416765SQL like wildcard character fuzzy query techniques and special charactersSQL like wildcard character fuzzy query techniques and special charactersHow to deal with time query by 1,sql likeThere are
Transfer from http://new-restart.iteye.com/blog/1416765SQL like wildcard character fuzzy query techniques and special charactersHow to deal with time query by 1,sql likeThere are savetime (smalldatetime type) fields in the SQL data table with two
1. SQL like method for time query processing the SQL data table has a savetime (smalldatetime type) field with two records in the table with Savetime value: 2005-3-8 12:12:00 and 2005-6-6 14:02:02 I can not find anything with the
For more information about bugs fixed in SQL Server 2000 Service Pack 4, click the following article number to view the article in the Microsoft Knowledge Base:314128 FIX: When an RPC call is performed, Access with conflicting values includes an
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,
Next: T-SQL Dynamic Query (3)--Static SQLObjective:There's a lot of talk about dynamic queries, and this article describes some of the ways to use dynamic SQL to solve dynamic queries.Why use Dynamic sql:In many projects, dynamic SQL is widely used
1. OverviewSQL is a database-oriented structured Query language. is a computer standard language that conforms to ANSI, the national standardization organization of the United States.SQL has the operation of the database: adding and deleting changes.
SQL statement optimization improves database performance and SQL statement database performance
In systems with unsatisfactory performance, apart from the fact that the application load exceeds the server's actual processing capacity, it is more
create table [dbo].[ tgongwen] ( --tgongwen is red-headed table name [Gid] [int] identity (1, 1) not null , --The ID number of this table, also the primary key [ title] [varchar] ( collate chinese_prc_ci_as ); null ,
See a very comprehensive SQL optimization article, in the development of the work often do not consider the performance of the lack of (at the beginning of the data volume is not seen the difference in speed). But the more you write, the more you
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