USE [database] GO CREATE NONCLUSTERED INDEX IX_TableName_CloumnA_CloumnB ON TableName ([CloumnA],[CloumnB]) INCLUDE(CloumnC) WITH(ONLINE=ON)
select ,update的字段、order by 、group by 放 Include。where条件中的放on
对于关联语句中的on,当有语句有where条件时放include,当没有where时放在on
USE [database] GO CREATE NONCLUSTERED INDEX IX_TableName_CloumnA_CloumnB ON TableName ([CloumnA],[CloumnB]) INCLUDE(CloumnC) WITH(ONLINE=ON,DROP_EXISTING = ON)
DROP_EXISTING = ON 删除与创建索引名称相同的索引,可用作对索引的修改