Question

Create view xxx
as
Select * from
DBName.dbo.table1

我有一个上面提到的DBName是动态的视图。我该如何创建此视图？我知道我们不能在视图中使用动态变量。我想知道如何在函数的帮助下完成它。

Answer 1

使用可以在这里使用同义词只需将DbName作为变量传递，如此

Declare @Dbname varchar(255)
Declare @qry varchar(255)

Set @Dbname="Name of the dataBase"

Set @qry='Create synonym ABC for'+@DbName+'.dbo.table1'
Exec (@qry)

现在使用此

IF EXISTS (SELECT 1 from sysobjects where id=object_id(''SN_DWTableCustomer'') and xtype=''SN'')
BEGIN 
DROP VIEW xxx 
Create view xxx as Select * from ABC 
END
ELSE 
BEGIN 
Create view xxx as Select * from ABC
END

为了更好地理解，请使用以下链接 https://www.techonthenet.com/oracle/synonyms.php What is the use of SYNONYM in SQL Server 2008?

请回复。

Answer 2

DECLARE @DBname varchar(max) = 'newdb'
DECLARE @sql varchar(max) = 'create view MyView as select * from '+@DBname+'.dbo.test'

EXEC (@sql)

SELECT * FROM MyView

Answer 3

DECLARE @DB VARCHAR(100) 
SET @DB = 'Your_DBName' DECLARE @CreateViewStatement  NVARCHAR(MAX) 
SET @CreateViewStatement = '      USE '+ QUOTENAME(@DB) +';      
EXEC(''
         CREATE VIEW [dbo].[MyTable] AS
         SELECT * FROM Your_Table
  '') '
EXEC (@CreateViewStatement)

在视图中使用动态DB名称

3 个答案: