The first answer is wrong, because 'NULL' is string its not null.

Which data type doesn't allow null data type?

Question Posted / rajesh

Answer Posted / rajesh

The first answer is wrong, because 'NULL' is string its not null.

If u give null in insert query as second parameter the row will be inserted.

Is This Answer Correct ?

1 Yes

1 No

Please Help Members By Posting Answers For Below Questions

What are the different types of constraints?

637

What are the different type of joins in sql?

625

Mention what are the benefits of pl/sql packages?

636

What is clustered index in sql?

675

What is character functions?

651

what is the difference between ereg_replace() and eregi_replace()? : Sql dba

650

What is difference between rank () row_number () and dense_rank () in sql?

685

What is sql partition?

653

How do you write a subquery?

612

What is memory optimized table?

663

Can we join tables without foreign key?

609

How can we connect an Android App to an Oracle database and use the PL/SQL procedural code?

679

How to disable a trigger name update_salary?

788

Is time a data type in sql?

560

How do you truncate?

579