when we've two tables with 1 => many relation
primary key in the master table won't be null.
So, the foreign field in the the foreign table won't be null.
But in my example :
1-primary table has no record.
2-foreign table has many records.
3-you can add records without has a primary value.
it's not a test for experts ....
need you opinion
Regards
primary key in the master table won't be null.
So, the foreign field in the the foreign table won't be null.
But in my example :
1-primary table has no record.
2-foreign table has many records.
3-you can add records without has a primary value.
it's not a test for experts ....
need you opinion
Regards