Because It checks the value is not null or null.

why not null constraint showing its constraint type
as 'c'

Question Posted / prativa mishra

Answer Posted / prativa mishra

Is This Answer Correct ?

0 Yes

0 No

Please Help Members By Posting Answers For Below Questions

What are sql triggers used for?

995

what is top in tsql? : Transact sql

1118

What is the difference between sql and t sql?

1034

Can we perform dml on view?

1044

What is varchar example?

1030

Does mysql support pl sql?

1172

what are all the different types of indexes? : Sql dba

1048

Does google use sql?

960

How many joins in sql?

1011

What is dense_rank?

935

What is a recursive join sql?

1072

Can we use ddl statements in stored procedure sql server?

1009

What is sql trigger example?

1061

what is a record in a database ? : Sql dba

1063

How to start oracle sql developer?

1035