What is the main different between Null and NOT Null.
Difference between Primary and Unique Key.
How to Check the database from which application is it
possibe.
Answer Posted / bharanikumar
primary key does not allow null value,
but unique allow only one null value...
www.happylife.in
Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
What does schema mean?
How to create a trigger in mysql?
Is mysql query case sensitive?
What is mysql optimization?
How many rows can a mysql table hold?
How is data stored in mysql?
Write a program using the select statement, while loop.
What is mysql_pconnect?
What is a trigger in mysql?
What is sharding in mysql?
Where is mysql used?
How to dump a table from a database.
How do I restore a mysql database?
How do I find mysql location?
How do I enable mysqli extension?