Question

Informix版本11.70 - 12.10

尝试创建存储过程以获取已锁定表的用户的会话ID，然后使用该会话ID执行内置函数。我没有在Informix中编写太多的程序。

围绕WITH RESUME获取语法错误。

任何帮助？

CREATE PROCEDURE sp_kill_lock ()

RETURNING
  INT as User_Session
;

-- declaration of variables
DEFINE rsUser_Session INT;

-- SELECT each User Session that has a lock on a table
SELECT DISTINCT s.sid AS User_Session
FROM sysmaster:syslocks l, sysmaster:syssessions s 
WHERE s.sid = l.owner 
   AND dbsname <> 'sysmaster' 
ORDER BY 1 
INTO TEMP tempSession;

--Cursor
FOREACH 
   SELECT User_Session
   INTO rsUser_Session
   FROM tempSession

RETURN
rsUser_Session;

--kill the session returned
EXECUTE FUNCTION sysadmin:task("onmode","z",rsUser_Session)

WITH RESUME
;

END FOREACH
END PROCEDURE;


 -- Permissions for routine "sp_kill_lock"
 grant execute on function sp_kill_lock to 'public';

我更改了代码，至少我不再遇到语法错误了。现在它说该函数返回了太多的值：

CREATE PROCEDURE sp_kill_lock ()

RETURNING
  INT as User_Session
;

-- declaration of variables
DEFINE rsUser_Session INT;

-- SELECT each User Session that has a lock on a table
SELECT DISTINCT s.sid AS User_Session
FROM sysmaster:syslocks l, sysmaster:syssessions s 
WHERE s.sid = l.owner 
   AND dbsname <> 'sysmaster' 
ORDER BY 1 
INTO TEMP tempSession;

--Cursor
FOREACH 
   SELECT User_Session
   INTO rsUser_Session
   FROM tempSession

--removed this RETURN
--RETURN
--rsUser_Session;

--kill the session returned
EXECUTE FUNCTION sysadmin:admin("onmode","z",rsUser_Session);

--removed the WITH RESUME

END FOREACH
END PROCEDURE;

测试锁定表：

BEGIN WORK;
LOCK TABLE mytable IN EXCLUSIVE MODE

Answer 1

! Missing $ inserted. <inserted text> $ l.380 ... Other Content Finding Features_10_0.png} ? ! Emergency stop. <inserted text> $ l.380 ... Other Content Finding Features_10_0.png}是WITH RESUME语句的一部分，因此在您的第一个示例中应该是：

RETURN

但执行时仍会出现错误，因为RETURN rsUser_Session WITH RESUME;无法返回值。您需要将其更改为PROCEDURE。

然后它可能不会执行您想要的操作，因为它在执行CREATE FUNCTION之前返回，因此，例如，如果只有一个会话要终止，它将永远不会执行{{1} }。而且它会留下温度表。

所以让我们重写它，总是执行onmode -z而不使用临时表（我使用的是Informix 12.10.FC10DE）：

onmode -z

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1 个答案: