表名称被多次指定

Question

我收到了错误：＆＃34;表名称＆＃39; temp＆＃39;指定不止一次＆＃34;当试图在两个表上执行连接时。 我所看到的每个例子都是我的，所以出了什么问题？

UPDATE info.temp
SET RobberID = info.Robber.RobberID
FROM info.temp
INNER JOIN info.Robber
ON info.temp.NickName = info.Robber.NickName;

Answer 1

尝试其中一个

UPDATE t1
SET RobberID = info.Robber.RobberID
FROM info.temp as t1
INNER JOIN info.Robber as t2
ON t1.NickName = t2.NickName;

或

UPDATE info.temp
SET RobberID = (select info.Robber.RobberID FROM info.Robber
WHERE info.temp.NickName = info.Robber.NickName)

Answer 2

您正在以错误的方式通过值格式info.temp更新info.temp 这样做

UPDATE info.temp
SET RobberID =  (select info.Robber.RobberID
FROM info.temp
INNER JOIN info.Robber
ON info.temp.NickName = info.Robber.NickName);