CREATE CLUSTERED INDEX index1 ON database1.schema1.table1 (column1); -- Syntax for SQL Server and Azure SQL Database -- Create a nonclustered index with a unique constraint -- on 3 columns and specify the sort order for each column CREATE UNIQUE INDEX index1 ON schema1.table1 (column...
有关如何创建 XML 索引的信息,请参阅 CREATE XML INDEX (Transact-SQL)。有关如何创建空间索引的信息,请参阅 CREATE SPATIAL INDEX (Transact-SQL)。 Transact-SQL 语法约定 语法 复制 Create Relational Index CREATE [ UNIQUE ] [ CLUSTERED | NONCLUSTERED ] INDEX index_name ON ( column [ ASC | DESC...
Transact-SQL 語法慣例SyntaxSQL Server、Azure SQL Database、Azure SQL 受控執行個體的語法syntaxsql 複製 CREATE [ UNIQUE ] [ CLUSTERED | NONCLUSTERED ] INDEX index_name ON ( column [ ASC | DESC ] [ ,...n ] ) [ INCLUDE ( column_name [ ,...n ] ) ] [ WHERE <filter_predicate>...
(2) 单击任务板中的“Create an Index” 链接,出现如图8-3 所示的索引创建向导界面。也可以从“Tools ”菜单中选择“izards” 菜单项,则出现如图5-17 所示的选择SQL Server 向导对话框,再从树型目录中选择“Database”下的“Create Index Wizard”选项,也会出现如图8-3 所示的索引创建向导界面。 (3) 单击...
PAD_INDEX = { ON | OFF } 适用于:SQL Server(SQL Server 2008 (10.0.x) 及更高版本)和 Azure SQL 数据库指定索引填充。 默认为 OFF。ON 指示由 fillfactor 指定的可用空间百分比应用于索引的中间级页。OFF 或未指定 fillfactor 指示考虑到中间级页上的键集,将中间级页填充到接近其容量的程度,以...
<index_option> ::=指定或 UNIQUE 索引的PRIMARY KEY索引選項。 如需索引選項的詳細資訊,請參閱 CREATE INDEX (Transact-SQL)。PAD_INDEX = { ON | OFF }指定索引填補。 預設值為 OFF。FILLFACTOR = fillfactor指定百分比,以表示 Database Engine 在索引建立或變更期間應該將每個索引頁面的分葉層級填滿的程度。
在检索缺失索引信息之前,必须在 SQL Server 实例上执行查询,以便查询优化器能够生成缺失索引信息。 下面的示例显示了如何通过 sys.dm_db_missing_index_details 动态管理视图返回的信息创建 DDL 语句: 对AdventureWorks2008R2 示例数据库执行以下查询: USE AdventureWorks2008R2; GO SELECT City, StateProvinceID, PostalC...
Applies to:SQL ServerAzure SQL DatabaseAzure SQL Managed Instance This article describes how to create indexes on a view. The first index created on a view must be a unique clustered index. After the unique clustered index has been created, you can create more nonclustered indexes. Creating ...
Applies to: SQL Server Azure SQL Database Azure SQL Managed InstanceThis article describes how to create indexes on a view. The first index created on a view must be a unique clustered index. After the unique clustered index has been created, you can create more nonclustered indexes. Creatin...
To create a function-based index, in addition to the prerequisites for creating a conventional index, if the index is based on user-defined functions, then those functions must be markedDETERMINISTIC. Also, you must have theEXECUTEobject privilege on any user-defined function(s) used in the fu...