oracleÖÐÈçºÎʵÏÖ¸øµ±Ç°Ê±¼ä¼ÓÒ»·ÖÖÓ£¿
select to_char(sysdate + 1 / (24 * 60),'yyyy/mm/dd hh24:mi:ss') from dual
SQL> ;
1 select to_char(sysdate, 'hh:mi:ss')
2 , to_char(sysdate + 1/60/24, 'hh:mi:ss')
3 , to_char(sysdate + 1/60/60/24, 'hh:mi:ss')
4* from dual
SQL> /
TO_CHAR(SYSDATE,'HH:MI:SS')
---------------------------------------------------------------------------
TO_CHAR(SYSDATE+1/60/24,'HH:MI:SS')
---------------------------------------------------------------------------
TO_CHAR(SYSDATE+1/60/60/24,'HH:MI:SS')
---------------------------------------------------------------------------
03:18:15
03:19:15
03:18:16
Ïà¹ØÎĵµ£º
ÏÂÃæÊÇCMDÃüÁî´°¿ÚϵIJÙ×÷£¬¿´¿´ÊÇÔõôµ¼ÈëµÄ¡£
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\oeg2006>imp
Import: Release 9.2.0.1.0 - Production on ÐÇÆÚÈý 11ÔÂ 25 19:24:12 2009
Copyright (c) 1982, 2002, Oracle Corporation. A ......
Oracle 9i¶¯Ì¬SGA¹ÜÀí
ÔÚOracle 9iÖУ¬¿ÉÒÔÉèÖÃSGA_MAX_SIZE£¬¸Ã²ÎÊýÓÃÒÔ¿ØÖƸ÷»º³å³ØÊ¹ÓõÄÄÚ´æ×ܺͣ¬±¾ÖÊÉÏÊÇÔÚ½ø³ÌÖÐÔ¤ÏÈ·ÖÅäÒ»¶ÎÐéÄâµØÖ·±¸Óöø²»·ÖÅäÎïÀíÄڴ棬ĿµÄÊÇ·ÀÖ¹ºÍ½ø³Ç˽ÓеØÖ·¶ÎµÄ³åÍ»¡£
Ö»Òª×ܵÄSGAÄÚ´æÉèÖò»³¬¹ýSGA_MAX_SIZEµÄÉèÖ㬸ü¸Ä¶¼¿ÉÒÔÁ¢¼´ÉúЧ¡£ÐèҪעÒâµÄÊÇ£¬ÔÚOracle 9iR1ÖУ¬¶¯Ì¬¼õСÄÚ´ ......
SELECT max(SYS_CONNECT_BY_PATH(COLUMN_NAME, ','))
from (SELECT A.COLUMN_NAME, ROWNUM AS ROWNO
from USER_TAB_COLUMNS A
WHERE TABLE_NAME = 'A_USER'
  ......
Èç¹ûÊÇÖÐÎÄ×Ö·û¼¯£º
[TEST@ora10gr1#2009-11-25/08:39:38]
SQL>create table t1(t timestamp);
Table created.
[TEST@ora10gr1#2009-11-25/08:39:56]
SQL>insert into t1 values(to_timestamp('21NOV09 10:04:12.032','DDMONYY HH24:MI:SS.FF'));
* ERROR at li ......
·ÖÀࣺOracle
Ò»£®ÒýÑÔ
ORACLEÊý¾Ý¿â×Ö·û¼¯£¬¼´OracleÈ«Çò»¯Ö§³Ö(Globalization Support)£¬»ò¼´¹ú¼ÒÓïÑÔÖ§³Ö£¨NLS£©Æä×÷ÓÃÊÇÓñ¾¹úÓïÑԺ͸ñʽÀ´´æ´¢¡¢´¦ÀíºÍ¼ìË÷Êý¾Ý¡£ÀûÓÃÈ«Çò»¯Ö§³Ö£¬ORACLEΪÓû§Ìṩ×Ô¼ºÊìϤµÄÊý¾Ý¿âĸÓï»·¾³£¬ÖîÈçÈÕÆÚ¸ñʽ¡¢Êý×Ö¸ñʽºÍ´æ´¢ÐòÁеȡ£Oracle¿ÉÒÔÖ§³Ö ......