Answer Posted / rakesh ranjan
IN PRIMARY KEY IS ONLY IN ANY TABLE BUT WHEN WE TALKING
ABOUT UNIQUE KEY, IT CAN BE NULL.
Is This Answer Correct ? | 5 Yes | 1 No |
Post New Answer View All Answers
Is mysql a free database?
What is int mysql?
What is not null in mysql?
What is a transaction? Describe mysql transaction properties.
What is difference between mysql and mysqli?
Where the database is stored in mysql?
Can you tell few best practices to be followed for optimization in sql?
What is blob and clob?
what is constraints? Also explain the different types of constraints?
What is a tinyint in mysql?
Can we store pdf files in mysql?
How to upload a large file through phpmyadmin in mysql?
Is mysql good for large database?
What is the maximum number of records in mysql table?
How do you rename a table in mysql?