Oracle if else if for case

------------------游标+for+if else if
DECLARE cursor s_cursor is SELECT * from emp;--定义游标
beginfor r in s_cursor loop--循环if r.deptno=10--if判断then dbms_output.put_line('名字:'||r.ename||'sal'||r.sal);else if r.deptno=20then dbms_output.put_line('名字:'||r.ename||'sal'||r.sal);else if r.deptno=30then dbms_output.put_line('名字:'||r.ename||'sal'||r.sal);end if;end if;end if;end loop;
end;
-----------------------case
select ename, deptno, sal,
casewhen deptno=10 then sal+10when deptno=20 then sal+20else sal end as addsal
from emp;
-------------if
beginif(1!=1)thendbms_output.put_line('000'); else if(10>2)thendbms_output.put_line('abc'); end if;end if;---注意这里
end;-----------for循环
DECLARE num number;
beginselect count(*) into num from emp;for r in 1..numloopdbms_output.put_line(r);end loop;
end;