Primary key is unique index and non null coulum in a table. While foreign

What is the difference between the Primary and Foreign key?

Question Posted / suma

Answer Posted / suma

Primary key is unique index and non null coulum in a table.
While foreign key can have repeated values.

Is This Answer Correct ?

9 Yes

1 No

Please Help Members By Posting Answers For Below Questions

What are the key differences between SQL and PL SQL?

1223

how to create a new table by selecting rows from another table in mysql? : Sql dba

1117

How to use sql statements in pl/sql?

1133

What is dcl in sql?

968

What's the difference between a primary key and a clustered index?

994

How to Execute a Package in PL/SQL.?

1214

what is sql? : Sql dba

1031

Can sql function call stored procedure?

1032

What has stored procedures in sql?

1071

What does sql stand for?

1003

Do stored procedures prevent sql injection?

973

What is a composite primary key?

1099

what is the difference between mysql_fetch_array and mysql_fetch_object? : Sql dba

1075

Is sql harder than python?

1111

What is data manipulation language?

1194