Create PROCEDURE EnumerateSQLServers
AS
/*
存储过程名称: EnumerateSQLServers
目        的:使用SQLDMO和TSQL列出所有可用的实例
*/

DECLARE @retval int
DECLARE @result varchar(500)
DECLARE @object int
DECLARE @objectList int
DECLARE @src varchar(254)
DECLARE @desc varchar(255)
DECLARE @resultsCount int
DECLARE @counter int
DECLARE @method varchar(255)

--创建SQLDMO对象
EXEC @retval = sp_OACreate 'SQLDMO.Application', @object OUT

--检查对象是否创建成功
IF @retval <> 0
BEGIN
    EXEC sp_OAGetErrorInfo @object, @src OUT, @desc OUT
    Select hr=convert(varbinary(4),@retval), Source=@src, Description=@desc
    RETURN
END
--调用方法ListAvailableServers() , 为SQLDMO.NameList得到Object_ID
EXEC @retval = sp_OAMethod @object , 'ListAvailableSQlServers()' , @objectList OUT
-- 是否有错误?
IF @retval <> 0
BEGIN
    EXEC sp_OAGetErrorInfo @objectList, @src OUT, @desc OUT
    Select hr=convert(varbinary(4),@retval), Source=@src, Description=@desc
    RETURN
END
--计算局域网里的服务器数量
EXEC @retval = sp_OAGetProperty @objectList , 'Count' , @resultsCount OUT
--再一次进行错误处理
IF @retval <> 0
BEGIN
    EXEC sp_OAGetErrorInfo @objectList, @src OUT, @desc OUT
    Select hr=convert(varbinary(4),@retval), Source=@src, Description=@desc
    RETURN
END

--如果有服务器的话，进入处理.....
IF @resultsCount > 0
BEGIN
  SET @counter = 1
  DECLARE @ServersTbl table (ServerID int IDENTITY ,ServerName varchar(255))
  WHILE @counter <= @resultsCount
  BEGIN
    --列出SQL实例:一个名字接一个名字的列出
    SET @method = 'Item(' + convert(varchar(3),@counter) + ')'        
    EXEC @retval = sp_OAGetProperty @objectList ,@method , @result OUT
    
    --将数据存到临时表
    Insert INTO @ServersTbl (ServerName) Select @result
    
    --移到下一条记录
    SET @counter = @counter + 1
  END
END
ELSE
BEGIN
  SET @result = 'No Servers around you'
  Insert INTO @ServersTbl (ServerName) Select @result
END
--释放对象
EXEC @retval = sp_OADestroy @object
IF @retval <> 0
BEGIN
  EXEC sp_OAGetErrorInfo @object, @src OUT, @desc OUT
  Select hr=convert(varbinary(4),@retval), Source=@src, Description=@desc
  RETURN
END

--好了,可以列出所有可用的实例了 ....
Select * FROM @ServersTbl
GO