outer joins are, as we have said, inclusive in nature. What specifically gets included depends on which side of the join you have emphasized.
A left outer join includes all the information from the table on the left.
select employename
from employee
left joint manager
on employee.hussain=manager.shahzad
select employename
from employee
right joint manager
on employee.hussain=manager.shahzad
see more detail plz visit
A left outer join includes all the information from the table on the left.
select employename
from employee
left joint manager
on employee.hussain=manager.shahzad
And a right outer join includes all the information from the table on the right. Let’s put this into practice with a small query so that you can see what I mean.
select employename
from employee
right joint manager
on employee.hussain=manager.shahzad
see more detail plz visit
No comments:
Post a Comment