1、 Oracle日期函數(shù):select sysdate from dual;
2、TO_CHAR(sysdate,'hh24:mi:ss')
3、ORACLE查詢樹型關(guān)系:start with connect by prior
1、 Oracle日期函數(shù):select sysdate from dual;
2、TO_CHAR(sysdate,'hh24:mi:ss')
3、ORACLE查詢樹型關(guān)系:start with connect by prior