What is differance unique key and primary key.

Answer Posted / nagurthilak

Through Unique key we cant establish the relation between to
two tables but from primary key it is possible

Is This Answer Correct ?    3 Yes 4 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What does trigger mean in slang?

495


Do triggers have restrictions on the usage of large datatypes, such as long and long raw?

662


explain the advantages and disadvantages of stored procedure? : Sql dba

510


How do you delete data from a table?

519


Can we delete column in sql?

534






what are the join types in tsql? : Transact sql

553


what is a primary key? : Sql dba

528


Can pl sql procedure have a return statement?

521


How can you select unique records from a table?

492


What is t-sql? : Transact sql

513


What is difference between nchar and nvarchar?

520


What is difference between sql and excel?

484


What is a heap in sql?

501


what happens when the column is set to auto increment and you reach the maximum value for that table? : Sql dba

551


How to pipe multiline string to isql?

548