SQLCMD模式和CREATE VIEW中的变量

Question

我试图在我的创建视图中使用sqlcmd模式变量 - 这不可能吗？

IF  EXISTS (SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'[dbo].[newTaxonomyMatterTypeId]'))
Drop view newTaxonomyMatterTypeId;
go
-- Create a view that has all of practice areas and all of Matters within the practice area using the new Taxonomy table
Create View NewTaxonomyMatterTypeId as (
select p.PracticeAreaId As NewPracticeAreaId, p.PracticeAreaEn, mt.MatterTypeId As NewMatterTypeId, mt.MatterTypeEn 
    from [$(Taxonomy_DB)].dbo.PracticeAreas p
    inner join [$(Taxonomy_DB)].dbo.MatterTypes mt on p.PracticeAreaId = mt.PracticeAreaID
    )
Go

请指教。

谢谢，KS

Answer 1

是的，这是可能的。 您似乎无论如何都没有设置Taxonomy_DB变量。 首先，确保您的SSMS处于SQLCMD模式（查询> SQLCMD模式），然后使用setvar在同一脚本或调用脚本中设置变量，例如

:setvar Taxonomy_DB yourDbName
IF  EXISTS (SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'[dbo].[newTaxonomyMatterTypeId]'))
Drop view newTaxonomyMatterTypeId;
go
-- Create a view that has all of practice areas and all of Matters within the practice area using the new Taxonomy table
Create View NewTaxonomyMatterTypeId as (
select p.PracticeAreaId As NewPracticeAreaId, p.PracticeAreaEn, mt.MatterTypeId As NewMatterTypeId, mt.MatterTypeEn 
    from [$(Taxonomy_DB)].dbo.PracticeAreas p
    inner join [$(Taxonomy_DB)].dbo.MatterTypes mt on p.PracticeAreaId = mt.PracticeAreaID
    )
Go

要么：

:setvar Taxonomy_DB yourDbName
:r "c:\temp\yourview.sql"

您还可以在使用sqlcmd.exe和-v开关时设置sqlcmd变量，或者让Visual Studio数据库项目为您处理此问题。