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CREATE OR REPLACE TYPE ty_str_array IS TABLE OF VARCHAR2 (4000);
CREATE OR REPLACE FUNCTION fn_split (p_str IN VARCHAR2, p_delimiter IN VARCHAR2)
RETURN ty_str_split
IS
j INT := 0;
i INT := 1;
len INT := 0;
&nbs ......
select a.constraint_name, a.table_name, b.constraint_name
from user_constraints a, user_constraints b
where a.constraint_type = 'R'
and b.constraint_type = 'P'
and a.r_constraint_name = b.constraint_name
P ´ú±íÖ÷¼ü
R ´ú±íÍâ¼ü ......
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"Óû§Ãû³Æ£¨U£©:"ÖÐÊäÈë'system'
"¿ÚÁP£©:"ÖÐÊäÈë'manager'
"Ö÷»ú×Ö·û´®£¨H£©:" tnsname.oraÖÐÅäÖõķþÎñÃû(Èç¹ûÊÇϵͳĬÈÏÊý¾Ý¿â¿ÉÒÔ²»ÊäÈë)
(×¢1£ºÕâ¸öÓû§Ãû/ÃÜÂëÊÇÔÚ°²×°¹ý³ÌÖÐ×Ô¼ºÉ趨µÄ)
(×¢2: Èç¹ûÉÏÊö²Ù×÷Å׳öûÓмàÌýÆ÷£¬ÔòÐè¿ ......
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TO_DATE¸ñʽ
Day:
dd number 12
dy abbreviated fri
day spelled out friday
ddspth spelled out, ordinal twelfth
Month:
mm number 03
mon abbreviated mar ......
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[oracle@wuzj ~]$ sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on Thu Feb 26 12:06:29 2009
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> conn /as sysdba
Connected.
//²é¿´Óû§
SQL> select username,password from dba_users;
......