most generally confuse the null value with zero. but zero is different t

what is null value?

Question Posted / ashu_deepu

Answer Posted / ashu_deepu

most generally confuse the null value with zero.

but zero is different then null.

null can be understand as unknown value.

Is This Answer Correct ?

3 Yes

1 No

Please Help Members By Posting Answers For Below Questions

What are the uses of Database Trigger ?

1634

How to lock and unlock a user account in oracle?

1036

What is a nested table and how is it different from a normal table?

993

Explain a synonym?

983

If a parameter is used in a query without being previously defined, what diff. exist betw. report 2.0 and 2.5 when the query is applied ?

2252

How do you bind variables in oracle?

934

What is the maximum number of triggers that can be applied to a single table?

962

List out the difference between commit, rollback, and savepoint?

997

How do we represent comments in oracle?

1005

What is recovery manager(rman) backup in Oracle?

1132

Explain the difference between sql and oracle?

1032

How different is ms access and oracle?

990

What is a directory object?

1036

How to create a testing table in oracle?

950

What is an oracle database table?

966