Sql server 2008 r2 无法在update语句中绑定多重层标识符

我正在尝试在sql server 2008r2上执行此查询-

SELECT @lUpd1 = 'UPDATE ts1cust.dbo.t_grgr_xwalk 
SET    xwalk.WEB = info.WEB,xwalk.AVIVIA = info.AVIVIA,xwalk.MSP = info.MSP,xwalk.QO   =    info.QO
FROM   ts1cust.dbo.t_plan_mspqo_info info, ts1cust.dbo.t_grgr_xwalk xwalk
WHERE  info.PLANID = xwalk.ID_471'

但是下面提到的错误-

 Msg 4104, Level 16, State 1, Line 1
The multi-part identifier "xwalk.WEB" could not be bound.

---

您可以将表

t\u grgr\u xwalk

别名为

xwalk

，因此对于第一个表达式

Update table

，您也应该使用

xwalk

SELECT @lUpd1 = 'UPDATE xwalk
SET    WEB = info.WEB,
       AVIVIA = info.AVIVIA,
       MSP = info.MSP,
       QO = info.QO
FROM   ts1cust.dbo.t_plan_mspqo_info info, ts1cust.dbo.t_grgr_xwalk xwalk
WHERE  info.PLANID = xwalk.ID_471'

您可以在下面尝试： 选择@lUpd1='更新ts1cust.dbo.t\u grgr\u xwalk 设置xwalk.WEB=info.WEB，xwalk.AVIVIA=info.AVIVIA，xwalk.MSP=info.MSP，xwalk.QO=info.QO 来自ts1cust.dbo.t\u计划\u mspqo\u信息

---

其中info.PLANID=xwalk.ID_471'

不允许在

集合

子句中的列的赋值端使用多部分标识符

SELECT @lUpd1 = 'UPDATE xwalk
SET    WEB = info.WEB, --<-- no xwalk. here
       AVIVIA = info.AVIVIA,
       MSP = info.MSP,
       QO   =    info.QO
FROM   ts1cust.dbo.t_plan_mspqo_info info
   INNER JOIN
       ts1cust.dbo.t_grgr_xwalk xwalk
         ON  info.PLANID = xwalk.ID_471'

选择@lUpd1='更新xwalk
设置WEB=info.WEB--