From c05eef2b123943f66ebfad22c8a6aa38fbe2c606 Mon Sep 17 00:00:00 2001 From: smallkun Date: Fri, 28 Feb 2025 11:46:50 +0800 Subject: [PATCH] Auto commit --- 2208/天天乐学考试答案/MySQL练习(一).md | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/2208/天天乐学考试答案/MySQL练习(一).md b/2208/天天乐学考试答案/MySQL练习(一).md index bdf0eef..acbec3b 100644 --- a/2208/天天乐学考试答案/MySQL练习(一).md +++ b/2208/天天乐学考试答案/MySQL练习(一).md @@ -322,5 +322,23 @@ UPDATE test1 t1, ( )t2 SET t1.tname = t2.str WHERE t1.tname = t2.tname; + +#5 +SELECT * +FROM tb_courses c +ORDER BY c.cid+0 +LIMIT 4, 11; + +#6 +SELECT s.stuname, TIMESTAMPDIFF(YEAR,s.birthday,'2023-12-01') +FROM tb_students s +WHERE TIMESTAMPDIFF(YEAR,s.birthday,'2023-12-01') BETWEEN 30 AND 40; + +#7 + + +#8 + + ```