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PRIMARY KEY constraints - Exercise
Course project: Using primary key constraints
Objective:
Create primary key constraints for the
COIN
database
Exercise scoring
This exercise is worth a total of 24 points. Each completed block of code is worth 4 points. You will be graded on completeness and correctness of code. When you complete your answer, submit your answer.
Background and Overview
Earlier in this course, you created a script file with the SQL statements needed to create the tables in your
COIN
database. In this exercise, you will modify those scripts to include primary key constraints.
Download files
You can download a correct version of the script for this exercise, primarykey.sql, from the project download file found on the Resources page.
Instructions
Add a primary key constraint for each table in the
COIN
database.
Hints
You can create a primary key that includes multiple columns by listing the columns, separated by commas.
Submitting your exercise
Submit your answer in the text box below.
Submit