create index index_nameontable_name | view_name(colume_name[1,,,n])index_name 是索引名称table...
您可以执行SHOW INDEX FROM test;语句,查看索引列。 新增列存索引列 ALTERINDEX IFEXISTSidx3ONtestADDCOLUMNS(c3); 详细语法介绍,请参见为列存表添加列(公测中)。 重新构建搜索索引 重新将全量数据同步到搜索索引中。 ALTERINDEX IFEXISTSidx2ONtest REBUILD;...
在rebuild index online 的开始和结束阶段时,需要短暂的对表持有模式为4的TM锁的,当获取到4级别的锁之后,才降为2级。如果rebuild online一直没获取到4级别的锁,那么相关的DML全部产生等待。 在执行期间只持有模式2的TM锁,不会阻塞DML操作。 在Oracle 11g之后,oracle做了特殊处理,后续的dml不会被rebuild online的...
alter_index::= Description of the illustration alter_index.eps (deallocate_unused_clause::=,allocate_extent_clause::=,shrink_clause::=,parallel_clause::=,physical_attributes_clause::=,logging_clause::=,partial_index_clause::=,rebuild_clause::=,alter_index_partitioning::=) ...
The key ingredient to this query is the last_system_scan column from sys.dm_db_index_usage_stats which gets updated after an index rebuild operation. In my test I cleared the stats of this DMV by restarting the SQL Server instance (so if you are doing your own testing – needless to ...
Parallel CREATE INDEX or ALTER INDEX ... REBUILD System Privileges Needed to Create or Alter a Procedure [ Previous book | Next book ]Enterprise Manager Concepts GuideDB Alter [ Previous book | Next book ]Parallel Server ConceptsALTER SYSTEM SWITCH LOGFILE [ Previous book | Next book ]...
ALTER INDEX { index_name | ALL } ON { REBUILD [ [PARTITION = ALL] [ WITH ( <rebuild_index_option> [ ,...n ] ) ] | [ PARTITION =partition_number [ WITH ( <single_partition_rebuild_index_option> [ ,...n ] ) ] ] ] ...
Modifies an existing table or view index (rowstore, columnstore, or XML) by disabling, rebuilding, or reorganizing the index; or by setting options on the index.
AlterTableRebuildStatement AlterTableSetStatement AlterTableStatement AlterTableSwitchStatement AlterTableTriggerModificationStatement AlterTriggerStatement AlterUserStatement AlterViewStatement AlterWorkloadGroupStatement AlterXmlSchemaCollectionStatement ApplicationRoleOption ApplicationRoleOptionKind ApplicationRoleStatement ...
Modifies an existing table or view index (rowstore, columnstore, or XML) by disabling, rebuilding, or reorganizing the index; or by setting options on the index.