• Learn
    • Courses
    • Career Tracks
    • Upcoming Courses
  • Certificates
    • Career Track Certificate
    • Course Certificate
  • Resources
    • All Resources
    • Course Notes
    • Templates
    • Infographics
    • Career Guides
    • Practice Exams
    • Blog
    • Success Stories
  • Pricing
  • Business
    • Team Plan
    • Live Trainings
Log In Sign Up
Follow this topic
Share
Peter Aziz
Last answered:

26 Sept 2022

Posted on:

24 Sept 2022

3

Resolved: 2 columns as primary key

in SQL / Relational schemas - Primary key
2 answers ( 1 marked as helpful)
Tsvetelin Tsonkov
Instructor
Posted on:

26 Sept 2022

2
Helpful answer
Peter Aziz
Posted on:

26 Sept 2022

0

Submit an answer

related questions

Jaycus Goh
1
38
foreign key tab missing foreign key
Marcus Wern Han Leong
2
16
Why did you not do not null, primary key and auto increment for customer id in the solution?
Michele Cannito Buch
0
12
Resolved: DROP FOREIGN KEY sales_ibfk_1 -- huh?
Harsha Dharmabandu
0
10
Resolved: foreign key : able to see foreign key in the table sales DDL tab , but the Foreign Keys tab is empty
kfir ben galil
0
10
Resolved: using the exists key word
Edu Jr Haban
1
6
how can you apply primary keys in multiple columns
Ayaz Mohammed Abdul Razzak
0
6
keys in Sequel, and specific question about candidate key
Houda
2
4
why you add a not null in the sales table besides primary key

All the Data Science Courses You Need

About

  • About Us
  • Instructors
  • Contact Us
  • Pricing

Learn

  • Courses
  • Career tracks
  • Career Certificate
  • Course Certificate

Resources

  • Course Notes
  • Templates
  • Career Guides
  • Practice exams
  • Blog

Platform

  • Success stories
  • Q&A Hub
  • Help Center
  • Verify Certificate
© 2023 365 Data Science. All Rights Reserved.
Terms of Use Privacy Policy Cookies