Oracle學習之merge

--使用merge語句
create table new as  select * from emp where 1=0;
insert into new (empno,ename) select empno,ename from emp where deptno=10;merge into new n using emp e
on (n.empno=e.empno)
when matched then update set n.sal=e.salwhen not matched then insert (n.empno,n.ename,n.sal,n.comm)values (e.empno,e.ename,e.sal,e.comm);select * from new;

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