joining the database

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i have two table names student and studentinfo.
in student table stuid(primary key) studentname.
in studentinfo stuid(foreign key) local address,permenant address etc..
now what i wanted to do is that when i going for using gridview i wanted to display
student name in student info table.. than how can do this??
pls reply.....

Posted 15-Nov-11 11:03am

Jignesh J patel

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_Damian S_ · Answer 1 · 2011-11-15T14:58:00

You need to use a join. They work like this:

select studentname, [local address], <other fields="" as="" required=""> from student inner join studentinfo on student.stuid = studentinfo.stuid

Inner join gives you records where there is s match in both tables. If there's a chance of no match in both tables, use a left join instead.

Of course, if there is only ever a single studentname mapped to each studentinfo row, then the question needs to be asked why they are in separate tables at all!!