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sqlserver清空servicebroker中的队列的语句分享

时间:2021-07-01 10:21:17 帮助过:68人阅读

代码如下:

USE TestDB
declare @conversation uniqueidentifier
while exists (select 1 from sys.transmission_queue )
begin
set @conversation = (select top 1 conversation_handle from sys.transmission_queue )
end conversation @conversation with cleanup
end

那么客户端接受到的消息如果没有处理,也会积攒在客户端队列中,其实就相当于许多未读邮件,我们可以使用以下脚本读取队列 ,读取后队列自动清空:
代码如下:

USE TestDB
DECLARE @RecvReplyMsg NVARCHAR(100) ;
DECLARE @RecvReplyDlgHandle UNIQUEIDENTIFIER ;
BEGIN TRANSACTION ;
WHILE ( 1 = 1 )
BEGIN
WAITFOR
( RECEIVE TOP(1)
@RecvReplyDlgHandle = conversation_handle,
@RecvReplyMsg = message_body
FROM dbo.Test_TargetQueue
), TIMEOUT 1000 ;
END CONVERSATION @RecvReplyDlgHandle ;
SELECT @RecvReplyMsg AS ReceivedReplyMsg ;
END
COMMIT TRANSACTION ;

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