massive many update column of the cursor?
I have the problem of finding how to make an update of several columns using the update statement block (if possible). I know how to do it using merge or correleated update, I just want to know how to write using features in bulk by pl/sql. Here's the code for the sample tables:create table emp_tmp as select empno, job, sal, comm from emp where deptno = 30;
update emp_tmp set sal=1000, comm=200, job='CLERK';
commit;
Now, I want to update original emp table with job, sal, comm emp_tmp table for some empnos. So I write:declare
cursor c is ( select e.empno, t.job, t.sal, t.comm
from emp e, emp_tmp t
where e.empno = t.empno
and e.empno > 7700 );
begin
-- ... here I would like to use bulk feature for update statement on emp
end;
I can't understand the syntax above idea in bulk using statements. Could you give me some advice about this? How it should be written?Thank you
A sample:
declare
cursor csr is ( select t.empno, t.job, t.sal, t.comm
from emp_tmp t
where t.empno > 7700 );
type t_emp is table of csr%rowtype;
t_emp1 t_emp;
begin
open csr;
loop
fetch csr bulk collect into t_emp1 limit 100;
forall i in 1..t_emp1.count
update emp
set sal = t_emp1(i).sal
where empno = t_emp1(i).empno;
exit when csr%notfound;
end loop;
close csr;
end;
Tags: Database
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