Mysql creates a table based on the query results

Source: Internet
Author: User

Mysql creates a table based on the query results

Assume that three tables exist.

S (sno, sname. sex, age, dept) // sno indicates the student's student ID, sname indicates the student's name, sex indicates the gender, age indicates the age, and dept indicates the Department

C (cno, cname, tname) // cno course number, cname Course name, tname instructor name

SC (sno, cno, grade) // sno student ID, cno course number, grade score

There are the following requirements: Create a new basic table stu (sno, sname, dept) for the student ID, name, and system of the student whose score is greater than or equal to 80)

Create table stu (
Select sno, sname, dept from s where s. sno in (select sno from SC where SC. grade> = 80)
);

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.