why not null constraint showing its constraint type
as 'c'
Answer / prativa mishra
Because It checks the value is not null or null.
Is This Answer Correct ? | 0 Yes | 0 No |
How can you select unique records from a table?
What is the maximum number of triggers, you can apply on a single table?
what command is used to create a table by copying the structure of another table including constraints ?
What is sql query limit?
What is difference between triggers and stored procedures. And advantages of SP over triggers ?
What is auto increment?
Is sql free?
Can we create a trigger on view?
What is compiled query?
what is explain plan?
What are the benefits of pl/sql packages?
How to fetch values from testtable1 that are not in testtable2 without using not keyword?