Oracle PLSQL Demo - 05.WHILE循环[WHILE LOOP]

declare v_display varchar2(10); begin for i in 1 .. 100 loop for j in reverse 1 .. 10 loop dbms_output.put_line(i || ' - ' || j); end loop; end loop; end;

declare v_sal number := 6000; begin loop v_sal := v_sal + 1; dbms_output.put_line(v_sal); exit when v_sal = 8000; end loop; end;

declare v_sal number := 6000; begin loop v_sal := v_sal + 1; dbms_output.put_line(v_sal); if v_sal = 8000 then exit; end if; end loop; end;

declare cursor cur_emp is select t.* from scott.emp t; begin for r_emp in cur_emp loop dbms_output.put_line(r_emp.empno || ' ' || r_emp.sal); end loop; end;

--PACKAGE CREATE OR REPLACE PACKAGE test_141213 is TYPE type_ref IS record( ENAME VARCHAR2(20), WORK_CITY VARCHAR2(20), SAL NUMBER(10)); TYPE t_type_ref IS TABLE OF type_ref; FUNCTION retrieve(v_name varchar2) RETURN t_type_ref PIPELINED; END test_14

declare Type ref_cur_variable IS REF cursor; cur_variable ref_cur_variable; rec_emp scott.emp%RowType; v_sql varchar2(100) := 'select * from scott.emp t'; begin Open cur_variable For v_sql; Loop fetch cur_variable InTo rec_emp; Exit When cur_variable

declare Type ref_cur_variable IS REF cursor; cur_variable ref_cur_variable; v_ename varchar2(10); v_deptno number(2); v_sal number(7,2); v_sql varchar2(100) := 'select t.ename, t.deptno, t.sal from scott.emp t'; begin Open cur_variable For v_sql; Loo

create or replace function function_demo RETURN emp PIPELINED as Type ref_cur_emp IS REF CURSOR RETURN emp%RowType; cur_emp ref_cur_emp; rec_emp cur_emp%RowType; begin Open cur_emp For select * from emp t; Loop fetch cur_emp InTo rec_emp; Exit When c

--PACKAGE CREATE OR REPLACE PACKAGE test_141215 is TYPE type_ref IS record( ENAME VARCHAR2(20), SAL NUMBER(10)); TYPE t_type_ref IS TABLE OF type_ref; FUNCTION retrieve(v_name varchar2) RETURN t_type_ref PIPELINED; END test_141215; -- PACKAGE BODY CR