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我目前在插入更新触发器中调用存储过程异步时出现问题。为此我使用服务代理。SQL Server 2005 Asnyc存储过程
--message type
CREATE MESSAGE TYPE [TheMessage] VALIDATION = NONE
--contract
CREATE CONTRACT [TheContract] ([TheMessage] SENT BY ANY);
--queue
CREATE QUEUE [TheQueue] WITH ACTIVATION
(STATUS = ON, MAX_QUEUE_READERS = 1,
PROCEDURE_NAME = TheStoreProcedure,
EXECUTE AS OWNER);
--service
CREATE SERVICE [TheService] ON QUEUE [TheQueue] ([TheContract]);
在触发器:
DECLARE @Handle UNIQUEIDENTIFIER;
BEGIN DIALOG CONVERSATION @Handle
FROM SERVICE [TheService]
TO SERVICE 'TheService'
ON CONTRACT [TheContract]
WITH ENCRYPTION = OFF;
SEND ON CONVERSATION @Handle
MESSAGE TYPE [TheMessage](N'some data');
在存储过程:
DECLARE @Handle UNIQUEIDENTIFIER;
DECLARE @MessageType SYSNAME;
RECEIVE TOP (1)
@Handle = conversation_handle,
@MessageType = message_type_name
FROM [TheQueue];
IF(@Handle IS NOT NULL)
BEGIN
-- some statements
END
此设置似乎并没有工作。触发器不会抛出任何错误,所以我假设消息已排队。但存储内的接收似乎不起作用。我的任何陈述都没有被执行。