This article describes how to disable an index or constraints in SQL Server by using SQL Server Management Studio or Transact-SQL. Disabling an index prevents user access to the index, and for clustered indexes to the underlying table data. The index definition remains in metadata, and index ...
SQL SERVER – Enable and Disable Index Non Clustered Indexes Using T-SQL SQL SERVER – Enabling Clustered and Non-Clustered Indexes – Interesting Fact
你禁用聚集索引,但我真的不知道SQL Server会如何反应,因此我们来试验下。 (以下代码运行在AdventureWorks2008R2数据库) 1--Let's disable a Clustered Index2ALTERINDEXPK_Person_BusinessEntityIDONPerson.Person DISABLE3GO 哈!语句还是可以正常执行的!但是你收到很多不同的外键约束也被禁用的警告。 好,我们已经禁...
使用CREATE INDEX语句创建索引 CREATE[UNIQUE] [ CLUSTERED | NONCLUSTERED ] INDEX索引名 ON{表名|视图名} (列名[ASC|DESC] [ ,...n ] ) 参数解析: UNIQUE:在表上创建唯一索引。唯一索引是不允许其中任意两行具有相同索引值的索引。 NONCLUSTERED:创建指定表的逻辑排序的索引。使用非聚集索引,数据行的物理顺...
Disabling a clustered index prevents user access to the underlying table data. To enable an index, use ALTER INDEX REBUILD or CREATE INDEX WITH DROP_EXISTING. For more information, see Disable indexes and constraints and Enable Indexes and Constraints....
Disabling a clustered index prevents user access to the underlying table data. To enable an index, use ALTER INDEX REBUILD or CREATE INDEX WITH DROP_EXISTING. For more information, see Disable indexes and constraints and Enable Indexes and Constraints....
13130 16 否 非聚集索引 (nonclustered index) 13131 16 否 credential 13132 0 否 传输 13133 0 否 每秒的累积等待时间(ms) 13134 0 否 每秒启动的等待数 13135 0 否 正在进行的等待数 13136 0 否 平均等待时间(ms) 13137 0 否 每秒的累积执行时间 (ms) 1313...
一、CREATE INDEX语法 CREATE INDEX语句所做的事情与其听上去一样-用于在指定表或视图上基于声明的列创建索引: CREATE [UNIQUE] [CLUSTERED | NONCLUSTERED] INDEX <index name> ON (<column name> [ASC|DESC][,...n]) INCLUDE (<column name> [,...n]) [ WITH [PAD_INDEX =...
(2) Create index on the same filegroups as the partition that will be switched out*/ CREATE CLUSTERED INDEX [ix_staging_DepartmentHistory_September_2023] ON [dbo].[staging_DepartmentHistory_September_2023] ( ValidTo ASC, ValidFrom ASC ) WITH ( ...
Syntax for SQL Server, Azure SQL Database, Azure SQL Managed Instancesyntaxsql Copy CREATE [ UNIQUE ] [ CLUSTERED | NONCLUSTERED ] INDEX index_name ON ( column [ ASC | DESC ] [ ,...n ] ) [ INCLUDE ( column_name [ ,...n ] ) ] [ WHERE <filter_predicate> ] [ WITH ( ...