INSERT EXEC语句不能嵌套。处理错误

时间:2017-05-18 14:58:48

标签: sql sql-server tsql sql-server-2012

不重复。这里的问题是它有不同的结构。我对可以改变的东西和我能做的事情有一些限制。在这里我有一个确切的例子,其他门票不是。 OPENROWSET也不能应用,因为test1循环遍历所有dbs(using EXEC sp_MSforeachdb @sql)。我无法使用它,因为在OPENROWSET中你必须指定从哪个db运行过程

假设我有这两个SP:

create procedure test1
@ProcName  varchar(155)
as
begin

if OBJECT_ID('tempdb..#testt') is not null drop table #testt
create table #testt1(a int, b int)

insert #testt1
exec @ProcName

select * from #testt1
end

create procedure test2  
as
begin

declare @sql varchar(155)

if OBJECT_ID('tempdb..#testt2') is not null drop table #testt2
create table #testt2(a int, b int)

select @sql = 'select 1 as a,2 as b'

insert #testt2
exec (@sql)

select * from #testt2

end

当我运行exec test1 @ProcName = 'Test2'时,它会返回错误:

  

无法嵌套INSERT EXEC语句。

这里的问题是我无法在insert exec中停止使用test2。 test1应该将@ProcName作为变量

解决此问题的最简单方法是什么?

2 个答案:

答案 0 :(得分:0)

尝试使用表变量替换第二个过程中的临时表,然后使用OPENQUERY(如http://www.sommarskog.se/share_data.html中所述),如下所示:

CREATE DATABASE Database1
CREATE DATABASE Database2
GO
DECLARE @ProcedureTest2 NVARCHAR(MAX)
SET @ProcedureTest2='create procedure test2  
as
begin
SET NOCOUNT ON 

declare @sql varchar(155)

DECLARE @testt2 TABLE (a int, b int)

select @sql = ''select 1 as a,2 as b''

insert @testt2
exec (@sql)

select * from @testt2

end'

DECLARE @SQL NVARCHAR(MAX)
SET @SQL='USE Database1 EXEC('''+REPLACE(@ProcedureTest2,'''','''''')+''')'
EXEC(@SQL)
SET @SQL='USE Database2 EXEC('''+REPLACE(@ProcedureTest2,'''','''''')+''')'
EXEC(@SQL)

GO
EXEC sp_addlinkedserver @server = 'LOCALSERVER',  @srvproduct = '', @provider = 'SQLOLEDB', @datasrc = @@servername

GO
CREATE procedure test1
@ProcName  varchar(155)
as
begin

if OBJECT_ID('tempdb..#testt1') is not null drop table #testt1
create table #testt1(a int, b int)

DECLARE @Databases TABLE (DBName sysname PRIMARY KEY)
INSERT INTO @Databases VALUES ('Database1')
INSERT INTO @Databases VALUES ('Database2')

DECLARE Databases CURSOR LOCAL READ_ONLY FOR
SELECT * FROM @Databases d

DECLARE @DBName sysname
OPEN Databases

WHILE 1=1 BEGIN
    FETCH NEXT FROM Databases INTO @DBName
    IF @@FETCH_STATUS<>0 BREAK

    DECLARE @SQL1 NVARCHAR(500), @SQL2 NVARCHAR(1000)
    SET @SQL1='EXEC '+QUOTENAME(@DBName)+'.dbo.'+QUOTENAME(@ProcName)
    SET @SQL2='SELECT * FROM OPENQUERY(LOCALSERVER, '+QUOTENAME(@SQL1,'''')+')'

    PRINT @SQL2
    INSERT INTO #testt1
    EXEC (@SQL2)
END

CLOSE Databases
DEALLOCATE Databases

select * from #testt1
end

GO
--EXEC [Database1].dbo.[test2]

--SELECT * FROM OPENQUERY(LOCALSERVER, 'EXEC [Database1].dbo.[test2]')

EXEC dbo.test1 'test2'

GO
EXEC sp_dropserver 'LOCALSERVER'
DROP PROCEDURE test1
DROP DATABASE Database1
DROP DATABASE Database2

答案 1 :(得分:0)

insert语句放在test2过程中解决了问题