Why foreign key column allowing null values even a parent
tables reference key column not having null value..
Answer Posted / rajkumar
Foreign key consider only the values. According to null value is not a value.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What are the options which must be set to allow the usage of optimistic models?
What is the cartesian product of the table?
how you can move data or databases between servers and databases in sql server? : Sql server administration
Which language is supported by sql server?
Explain what are partitioned views and distributed partitioned views?
What is 'Join' and explain its various types.
mention different types of relationships in the dbms?
Explain database normalization?
Explain cross join or cartesian product in sql?
How do I find query history in sql server?
How to add more data to the testing table in ms sql server?
What is a group function explain with an example?
Can we perform backup restore operation on tempdb?
how many bits ip address consist of? : Sql server database administration
Please differentiate between a local and a global temporary table?