SQLServer的查询优化器总是尝试找到最佳的执行计划,有时候虽然你建立了索引视图,但优化器依然使用了原始表上的索引,此时你可以使用 WITH NOEXPAND 来强制使用索引视图上的索引(而不是原始表上的索引)。 索引视图在SQLServer2012 的各个版本上都有支持,在开发版或企业版中查询处理器甚至能以此来把匹配索引视图的查询都...
Dies ändert die Eigenschaften eines Volltextindex in SQL Server.Transact-SQL-SyntaxkonventionenSyntaxsyntaxsql Kopieren ALTER FULLTEXT INDEX ON table_name { ENABLE | DISABLE | SET CHANGE_TRACKING [ = ] { MANUAL | AUTO | OFF } | ADD ( column_name [ TYPE COLUMN type_column_name ] [ ...
Transact-SQL 语法约定 语法 适用于 SQL Server、Azure SQL 数据库和 Azure SQL 托管实例的语法 syntaxsql 复制 CREATE [ UNIQUE ] [ CLUSTERED | NONCLUSTERED ] INDEX index_name ON ( column [ ASC | DESC ] [ ,...n ] ) [ INCLUDE ( column_name [ ,...n ] ) ] [ WHERE <filter_predica...
SQL Server、Azure SQL 数据库和Azure SQL 托管实例的语法。 syntaxsql 复制 ALTER INDEX { index_name | ALL } ON { REBUILD { [ PARTITION = ALL [ WITH ( <rebuild_index_option> [ , ...n ] ) ] ] | [ PARTITION = partition_number [ WITH ( <single_partition_rebuild_index_option> [...
The syntax of the CREATE INDEX, CREATE TABLE, and ALTER TABLE statements supports the keywords ASC (ascending) and DESC (descending) on individual columns in indexes and constraints.Specifying the order in which key values are stored in an index is useful when queries referencing the table have...
Syntax Version availability Arguments Permissions さらに 8 個を表示 Applies to:SQL ServerAzure SQL DatabaseAzure SQL Managed InstanceAzure Synapse AnalyticsAnalytics Platform System (PDW)SQL database in Microsoft Fabric Convert a rowstore table to a clustered columnstore index, or create a noncl...
Syntax for SQL Server, Azure SQL Database, and Azure SQL Managed Instance. syntaxsql Copy ALTER INDEX { index_name | ALL } ON { REBUILD { [ PARTITION = ALL [ WITH ( <rebuild_index_option> [ , ...n ] ) ] ] | [ PARTITION = partition_number [ WITH ( <single_partition_rebuild...
Use the syntax structure specified in <relational_index_option> instead. syntaxsql Copy CREATE [ UNIQUE ] [ CLUSTERED | NONCLUSTERED ] INDEX index_name ON ( column_name [ ASC | DESC ] [ ,...n ] ) [ WITH <backward_compatible_index_option> [ ,...n ] ] [ ON { filegroup_...
Use the syntax structure specified in <relational_index_option> instead. syntaxsql Copy CREATE [ UNIQUE ] [ CLUSTERED | NONCLUSTERED ] INDEX index_name ON ( column_name [ ASC | DESC ] [ ,...n ] ) [ WITH <backward_compatible_index_option> [ ,...n ] ] [ ON { filegroup_...
SKAPA TABELL (Transact-SQL) Från och med SQL Server 2016 (13.x) kan du skapa en minnesoptimerad tabell med ett kolumnlagringsindex. Kolumnlagringsindexet kan också läggas till när tabellen har skapats med hjälp av syntaxen ALTER TABLE ADD INDEX. Läs in data i ett column...