feat(DB): exp1

2023-04-13 12:17:07 +08:00 · 2023-04-13 12:17:07 +08:00 · 7842297c18
parent 4e97b32fb6
commit 7842297c18
1 changed files with 2 additions and 1 deletions
--- a/DB/exp1.sql
+++ b/DB/exp1.sql
@ -19,7 +19,8 @@ create table orders(
       m_account varchar(20) references members(m_account),
       p_no char(10) references products(p_no),
       o_quantity int,
-       o_date date
+       o_date date,
+	   primary key (m_account,p_no)
       );

 insert into members values ('jin', '刘津', '女', '北京', 8200, 'jin'),