技術標籤：sql

SQL語句—多表聯查、改、刪

1.多表聯查

select* 
from Student t1 inner join Teacher t2 on t1.no=t2.no
where t2.Tname='Mimo_YY'

2.多表聯改

update t1
set t1.Sname='Mimo_YY',t1.Sage='16'
from Student t1 inner join Teacher t2 on t1.no=t2.no
where t2.Tname='Mimo_YY'

3.多表聯刪

delete t1
from Student t1 inner join Teacher t2 on t1.no=t2.no
where t2.Tname='Mimo_YY'
 

寫法需要注意的點：

• update、delete後加表名
• update更新多個值 時，欄位之間用‘，’ 隔開

–如有錯誤，歡迎各位交流指正；
–如有引用，請連結本文！