摘要:
import pymysql user = input('username: ') pwd = input('password: ') conn = pymysql.connect(host='127.0.0.1',user='root',password='123',database='db666') cursor = conn.cursor() sql = "select * from us...
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posted @ 2019-03-02 23:02
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摘要:
表结构 -- 成绩大于60分-- select * from score where num >60-- 课程表中老师任课的个数是多少?-- SELECT * FROM course;-- SELECT teacher_id,count(cname)FROM course GROUP BY teac
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posted @ 2019-03-02 07:30
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