在另一个数据库中创建存储过程

Any idea if it's possible to create a procedure in another database using T-SQL alone, where the name of the database is not known up front and has to be read from a table? Kind of like this example:

任何想法是否可以单独使用T-SQL在另一个数据库中创建一个过程，其中数据库的名称是预先知道的并且必须从表中读取？有点像这个例子：

Use [MasterDatabase]
Declare @FirstDatabase nvarchar(100)
Select Top 1 @FirstDatabase=[ChildDatabase] From [ChildDatabases]
Declare @SQL nvarchar(4000)
Declare @CRLF nvarchar(10) Set @CRLF=nchar(13)+nchar(10)
Set @SQL =
    'Use [+'@Firstdatabase+']'+@CRLF+
    'Go'+@CRLF+
    'Create Proc [Test] As Select 123'
Exec (@SQL)

See what I'm trying to do? This example fails because Go is actually not a T-SQL command but it something recognised by the query analyser/SQL management studio and produces an error. Remove the Go and it also fails because Create Proc must be the first line of the script. Arrgg!!

看看我想做什么？此示例失败，因为Go实际上不是T-SQL命令，但是它由查询分析器/ SQL管理工作室识别并产生错误。删除Go也会失败，因为Create Proc必须是脚本的第一行。 Arrgg！

The syntax of T-SQL doesn't allow you do things like this:

T-SQL的语法不允许你这样做：

Create [OtherDatabase].[dbo].[Test]

创建[OtherDatabase]。[dbo]。[测试]

Which is a shame as it would work a treat! You can do that with Select statements, shame it's inconsistent:

这是一种耻辱，因为它会起作用！你可以用Select语句做到这一点，耻辱它是不一致的：

Select * From [OtherDatabase]..[TheTable]

选择*来自[OtherDatabase] .. [TheTable]

Cheers, Rob.

干杯，罗布。

5 个解决方案

#1

It's a pain, but this is what I do. I took this from an example I found on sqlteam, I think - you might have some quoting issues with the way I did the indiscriminate REPLACE:

这是一种痛苦，但这就是我所做的。我从我在sqlteam上找到的一个例子中得到了这个，我想 - 你可能有一些引用问题与我做不加区分的REPLACE的方式：

DECLARE @sql AS varchar(MAX)
DECLARE @metasql as varchar(MAX)
DECLARE @PrintQuery AS bit
DECLARE @ExecQuery AS bit

SET @PrintQuery = 1
SET @ExecQuery = 0

SET @sql = 
'
CREATE PROCEDURE etc.
AS
BEGIN
END
'

SET @metasql = '
USE OtherDatabase
EXEC (''' + REPLACE(@sql, '''', '''''') + ''')
'

IF @PrintQuery = 1
    PRINT @metasql
IF @ExecQuery = 1
    EXEC (@metasql)

#2

DECLARE @UseAndExecStatment nvarchar(4000),
        @SQLString nvarchar(4000)

SET @UseAndExecStatment = 'use ' + @DBName +' exec sp_executesql @SQLString'

SET @SQLString = N'CREATE Procedure [Test] As Select 123'

EXEC sp_executesql  @UseAndExecStatment,
            N'@SQLString nvarchar(4000)', @SQLString=@SQLString

#3

This is how i have done with Alter Procedure:

这就是我对Alter程序的处理方式：

DECLARE @metasql as varchar(MAX)
DECLARE @sql AS varchar(MAX)

SET @sql = 
'ALTER PROCEDURE [dbo].[GetVersion]
    AS 
        BEGIN
            SET NOCOUNT ON;
            SELECT TOP(1)[Version] from VersionTable                
        END'

SET @metasql = '
USE MyProdDb
IF (OBJECT_ID(''GetVersion'') IS NOT NULL  OR OBJECT_ID(''GetVersion'', ''P'') IS NOT  NULL)
BEGIN
  EXEC (''' + REPLACE(@sql, '''', '''''') + ''')
END
'
--PRINT @metasql
EXEC (@metasql)

#4

You could shell out to osql using xp_cmdshell, I suppose.

我想你可以使用xp_cmdshell向osql发送shell。

#5

I dont think this can be done with TSQL.

我不认为这可以用TSQL完成。

You could use an SSIS package that looped the names and connected to the servers dynamically which creates the schema (procs ) you need.

您可以使用SSIS包来循环名称并动态连接到服务器，从而创建所需的模式（过程）。

This is probably what I would do as it means it is all contained within the package.

这可能是我要做的，因为它意味着它都包含在包中。

Configuration can be kept separate by either using a table or external xml file that contained the list of server/databases to deploy the schema to.

可以使用包含要部署架构的服务器/数据库列表的表或外部xml文件来单独配置。

#1