一尘不染

如何使用在线创建非聚集索引(如果可用)

sql

我正在按照Azure门户中使用该ONLINE=ON标志的查询见解刀片服务器的建议向SQL Azure数据库添加新索引。SQL看起来像这样:

CREATE NONCLUSTERED INDEX [IX_MyIndex] ON 
       [Customers].[Activities] ([CustomerId]) 
   INCLUDE ([AccessBitmask], [ActivityCode], [DetailsJson], 
       [OrderId], [OperationGuid], [PropertiesJson], [TimeStamp]) 
   WITH (ONLINE = ON)"

但是,我们还需要将此相同的索引添加到我们的本地开发数据库中,它们只是localdb不支持该ONLINE=ON选项的实例,从而导致以下错误。

Online index operations can only be performed in Enterprise edition of SQL Server.

我的问题是-有没有办法编写此SQL索引创建语句,该语句将ONLINE=ON 在可用时使用 ,但在不支持该语句的数据库上仍会成功?


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2021-05-23

共1个答案

一尘不染

您可以使用如下所示的内容:

DECLARE @Edition NVARCHAR(128);
DECLARE @SQL NVARCHAR(MAX);

SET @Edition = (SELECT SERVERPROPERTY ('Edition'));

SET @SQL = N'
CREATE NONCLUSTERED INDEX [IX_MyIndex] ON 
       [Customers].[Activities] ([CustomerId]) 
   INCLUDE ([AccessBitmask], [ActivityCode], [DetailsJson], 
       [OrderId], [OperationGuid], [PropertiesJson], [TimeStamp]) 
'

IF @Edition LIKE 'Enterprise Edition%' OR @Edition LIKE 'SQL Azure%' BEGIN
    SET  @SQL = @SQL + N' WITH (ONLINE = ON)';
END;

EXEC sp_executesql @SQL;
2021-05-23