我想通过简单地从select语句分配一个变量来学习PL/SQL,然后,为了确认它的工作,打印它的sql输出。PL/SQL,无法打印变量
DECLARE ALLOW_STUFF NUMBER;
BEGIN
SELECT VAL_N INTO ALLOW_STUFF FROM MY_TABLE WHERE MY_KEY = 'ALLOW_ME';
DBMS_OUTPUT.PUT_LINE(ALLOW_STUFF);
END;
我正在使用SQL Developer和/或SQL PLus。当我运行它,我得到的是
Anonymous block completed
比超过MY_TABLE.VAL_N
'set serveroutput on' http://docs.oracle.com/cd/E11882_01/server.112/e16604/ch_eight.htm#sthref952 –