Php 根据列值更新不同表中的不同列
我试图回答问题中所写的内容,可能是一个愚蠢的问题,但我找不到解决方案,基本上这就是我想做的:Php 根据列值更新不同表中的不同列,php,mysql,Php,Mysql,我试图回答问题中所写的内容,可能是一个愚蠢的问题,但我找不到解决方案,基本上这就是我想做的: if(a.operator_id!=0){ UPDATE ".$SupportTicketsTable." a ,".$SupportUserTable." b SET a.title=? , a.priority=?, a.ticket_status=?, b.solved_tickets= CASE WHEN a.ticket_status!='0' T
if(a.operator_id!=0){
UPDATE ".$SupportTicketsTable." a ,".$SupportUserTable." b
SET a.title=? , a.priority=?, a.ticket_status=?,
b.solved_tickets= CASE
WHEN a.ticket_status!='0' THEN (b.solved_tickets+1)
ELSE b.solved_tickets END ,
b.assigned_tickets= CASE
WHEN a.ticket_status!='0' THEN (b.assigned_tickets-1)
ELSE b.assigned_tickets END ,a.ticket_status='0'
WHERE a.enc_id=? AND b.id=a.operator_id
}
else{
UPDATE ".$SupportTicketsTable." a ,".$SupportUserTable." b
SET a.title=? , a.priority=?, a.ticket_status=?
ELSE b.assigned_tickets END ,a.ticket_status='0'
WHERE a.enc_id=?
}
当a.operator\u id=0时,b.id
没有与条件匹配的值
有没有一种方法可以在一个查询中实现这一点?提前谢谢
我认为你的分支机构错了:
...
else{
UPDATE ".$SupportTicketsTable." a ,".$SupportUserTable." b
SET a.title=? , a.priority=?, a.ticket_status=?
ELSE b.assigned_tickets END ,a.ticket_status='0'
WHERE a.enc_id=?
}
您可以创建一个或两个内部带有dynamicSQL的srored过程,并将表名作为参数放入其中。例如:
DELIMITER $$
DROP PROCEDURE IF EXISTS my_proc $$
CREATE PROCEDURE my_proc (IN SupportTicketsTable VARCHAR(20), IN SupportUserTable VARCHAR(20))
BEGIN
SET @SQLS = CONCAT('UPDATE ',SupportTicketsTable, 'a ', SupportUserTable,' b
SET a.title=? , a.priority=?, a.ticket_status=?,
b.solved_tickets= CASE
WHEN a.ticket_status!='0' THEN (b.solved_tickets+1)
ELSE b.solved_tickets END ,
b.assigned_tickets= CASE
WHEN a.ticket_status!='0' THEN (b.assigned_tickets-1)
ELSE b.assigned_tickets END ,
a.ticket_status='0'
WHERE a.enc_id=? AND b.id=a.operator_id';
PREPARE STMT FROM @SQLS;
EXECUTE STMT;
DEALLOCATE PREPARE STMT;
END$$
谢谢你的回复,但我想我已经解决了这个问题,只需从和改为或