Docker源码分析（一）：Docker架构

CREATE OR REPLACE PROCEDURE WHERE_CURRENT
IS
CURSOR EMP_LIST IS
SELECT EMPNO
, ENAME
, SAL
FROM EMP
WHERE EMPNO = 1000
FOR UPDATE;

BEGIN
DBMS_OUTPUT.ENABLE;
DBMS_OUTPUT.PUT_LINE('***** 更新操作 *****');

FOR EMPLIST IN EMP_LIST LOOP
UPDATE EMP
SET JOB = 'PM'
, SAL = 1000
WHERE CURRENT OF EMP_LIST;
DBMS_OUTPUT.PUT_LINE('***** 修改完成 *****');

END LOOP;

EXCEPTION
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE('ERR CODE : ' || TO_CHAR(SQLCODE));
DBMS_OUTPUT.PUT_LINE('ERR MESSAGE : ' || SQLERRM);
END WHERE_CURRENT;