Can a primary key have null values? If we try to insert a
null value in a primary key column, will it work or give an
error code?
Answer Posted / sangeetha
There cannot be null values in a Primary Key column.
It will result in error code.
Is This Answer Correct ? | 26 Yes | 3 No |
Post New Answer View All Answers
How would the varchar column remarks defined?
How do I start db2 in windows?
Mention the downsides of page level lock.
What are packages in db2?
While unloading huge amount of data from table. Suddenly job failed some error. Imagine 1M data unloading, In that 90% data unloaded only 10% left, So if want to unload the rest 10% what needs to be done? Whether do i need to start from top or anything ?
What is the maximum No of rows per page?
What is db2 stogroup?
How to resolve deadlock issue
What are db2 tables?
How do I copy a table in db2?
How to retrieve rows from a db2 table in embedded sql?
What are bind parameters in db2?
How to find primary key of a table in db2?
Why do we use cursor?
Why do we need reorg in db2?