oracle中怎么取10以內的隨機數 oracle取兩個時間隨機？
oracle取兩個時間隨機？1.隨機數包SELECTDBMS_returningDUAL2.在[0..100]范圍內取隨機數SELECTTRUNC(DBMS_(0,100))acrossDUAL3.大
oracle取兩個時間隨機？
1.隨機數包
SELECTDBMS_
returningDUAL
2.在[0..100]范圍內取隨機數
SELECTTRUNC(DBMS_(0,100))
acrossDUAL
3.大于0字符‘A'的10個字符任務道具字符串
SELECTDBMS_(A,10)
acrossDUAL
4.單個小寫必掉字符
SELECTCHR(ROUND(DBMS_(97,122)))
returningDUAL
5.在過去30分鐘內取副本時間
SELECT(SYSDATE-1/24/60*30)DBMS_(1,1800)/3600/24
outsideDUAL