Can we use more than one null value for unique key?
Answer Posted / iftekharul haque
no because primary key is the unique value of the table that
can not allow null&duplicate value.
so it is not possiblity use more than one null value and
duplicate valu
| Is This Answer Correct ? | 5 Yes | 12 No |
Post New Answer View All Answers
What are all the common sql functions?
How do I enable sql encryption?
Is sql database free?
how to do backup entire database? : Transact sql
What are the packages in pl sql?
What is null in pl/sql?
What is auto increment?
what is isam? : Sql dba
Compare sql & pl/sql
Why is stored procedure faster than query?
What is sqlservr exe?
How do I view output in sql developer?
How do I edit a trigger in sql developer?
What is a primary key sql?
What does (+) mean in sql joins?