A庫存儲過程：

create PROCEDURE [dbo].[spAAAForTest](                            @UserName   nvarchar(20) =null ,    @LoginPwd nvarchar(60)  =null)ASBEGIN    select N'A' AS a    , N'B' AS B    , N'C' AS C        ;END

同一臺服務器實例，A，B兩個數據庫， 在B庫的存儲過程中，調用A庫的存儲過程

B庫：

ALTER PROCEDURE [dbo].[spAAAForTest2](                            @UserName   nvarchar(20) =null ,    @LoginPwd nvarchar(60)  =null)ASBEGIN   declare @sql nvarchar(500);   set @sql = N' exec DB_A.dbo.spAAAForTest ';    exec  sp_executesql @sqlEND

A，B兩個數據庫，不在同一臺服務器實例， 在B庫的存儲過程中，調用A庫的存儲過程

B庫：

ALTER PROCEDURE [dbo].[spAAAForTest2](                            @UserName   nvarchar(20) =null ,    @LoginPwd   nvarchar(60)  =null)ASBEGIN   declare @sql nvarchar(500);   set @sql = N' exec OPENDATASOURCE(''SQLOLEDB'',''Data Source=SERVER-123/MSSQL2008R2;User ID=sa;PassWord=sa'').DB_A.dbo.spAAAForTest ';   exec  sp_executesql @sqlEND

--------------- 在跨服務器調用時，所使用OPENDATASOURCE 遭遇如下信息時

消息 15281，級別 16，狀態 1，第 1 行

SQL Server blocked access to STATEMENT 'OpenRowset/OpenDatasource' of component 'Ad Hoc Distributed Queries'

because this component is turned off as part of the security configuration for this server.

A system administrator can enable the use of 'Ad Hoc Distributed Queries' by using sp_configure.

For more information about enabling 'Ad Hoc Distributed Queries',

see "Surface Area Configuration" in SQL Server Books Online.

通過如下方式進行設置：

exec sp_configure 'show advanced options',1reconfigureexec sp_configure 'Ad Hoc Distributed Queries',1reconfigure

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