Delete with Left Join in Oracle 10g

Question

I have the following code that works fine in MS SQL Server:

delete grp
from grp
left join my_data
on grp.id1 = my_data.id1
and grp.id2 = my_data.id2
and grp.         


        

Answer 1

I can't add a comment because it need 50 reps,so I add a answer here.

I tested Vincent's delete from query, that syntax can't let you delete what you want,at least it's not a common use for all the delete join cases.

At first I create a table using oracle default user scott:

create table emp1 as select * from emp where sal<2000;

I want to delete the records from emp where empno in emp1(just a simple test),so I used this delete from query:

delete from (select a.* from emp a join emp1 b on a.empno=b.empno);

No matter what the table or join order is,left join or inner join,no matter what where clause I use,the sql will delete the corresponding records in emp1.

So I think this delete from query can not let you delete from a specified table. Loop a cursor will be a better way for these cases.