sql-server - 非企业版SQL Server在线索引

Question

我正在尝试根据 SQL Server 版本实现逻辑:

IF SERVERPROPERTY('EngineEdition') = 3 /* Enterprise */ OR SERVERPROPERTY('EngineEdition') = 5 /* SQL Azure */
BEGIN
  CREATE NONCLUSTERED INDEX IX_MobileDeviceId_with_include ON dbo.FineActivations (MobileDeviceId) INCLUDE (ActivationTime, FineId) WITH (ONLINE = ON);
END

在 SQL Server Express 上，IF 中的条件不满足。但它仍然会产生以下错误:

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

有没有可能克服它？

Answer 1

不可能在 Express 版中引用 Enterprise 功能，它不会在句法上进行验证。您可以使用动态 SQL 解决问题。

DECLARE @sqlcmd nvarchar(4000)
SET @sqlcmd = ' CREATE NONCLUSTERED INDEX IX_MobileDeviceId_with_include ON dbo.FineActivations (MobileDeviceId) INCLUDE (ActivationTime, FineId) '

if SERVERPROPERTY('EngineEdition') = 3 /* Enterprise */ OR SERVERPROPERTY('EngineEdition') = 5 /* SQL Azure */
begin 
set @sqlcmd = @sqlcmd +'
    with (online = on)'
end
else
begin
set @sqlcmd = @sqlcmd + '
    with (fillfactor = 80)'
end

if ((select indexproperty(object_id('FineActivations'),'IX_MobileDeviceId_with_include','IndexID')) is null)
BEGIN
    EXEC (@sqlcmd)
END