SQL就像计算字段状态

Question

Diagram Data Base

如何创建一个读取所有Status_Jobs状态的计算字段，如果所有状态都在＆＃34; COMPLETE＆＃34;

然后Status_Project更改为＆＃34;已完成＆＃34;

但是如果在＆＃34; INCOMPLETE＆＃34;

中有Status_Jobs的记录

Status_Project ＆＃34; INCOMPLETE＆＃34;

由于

Answer 1

试试这个，

declare @Status varchar(50)
if (Select count(*) from tablename where Status_Project ='Completed')=(Select count(*) from tablename)
set @Status='Completed'
ELSE
set @Status='InCompleted'

update tablename set Status=@Status