OracleÖÐTO_DATE¸ñʽ
ÀÁèÐÇ¿Õ
TO_DATE¸ñʽ(ÒÔʱ¼ä:2007-11-02 13:45:25ΪÀý)
Year:
yy two digits Á½Î»Äê ÏÔʾֵ:07
yyy three digits ÈýλÄê ÏÔʾֵ:007
yyyy four digits ËÄλÄê ÏÔʾֵ:2007
Month:
mm number Á½Î»Ô ÏÔʾֵ:11
mon abbreviated ×Ö·û¼¯±íʾ ÏÔʾֵ:11ÔÂ,ÈôÊÇÓ¢Îİæ,ÏÔʾnov
month spelled out ×Ö·û¼¯±íʾ ÏÔʾֵ:11ÔÂ,ÈôÊÇÓ¢Îİæ,ÏÔʾnovember
Day:
dd number µ±Ôµڼ¸Ìì ÏÔʾֵ:02
ddd number µ±ÄêµÚ¼¸Ìì ÏÔʾֵ:02
dy abbreviated µ±Öܵڼ¸Ìì¼òд ÏÔʾֵ:ÐÇÆÚÎå,ÈôÊÇÓ¢Îİæ,ÏÔʾfri
day spelled out µ±Öܵڼ¸Ììȫд ÏÔʾֵ:ÐÇÆÚÎå,ÈôÊÇÓ¢Îİæ,ÏÔʾfriday
ddspth spelled out, ordinal twelfth
Hour:
hh two digits 12Сʱ½øÖÆ ÏÔʾֵ:01
hh24 two digits 24Сʱ½øÖÆ ÏÔʾֵ:13
Minute:
mi two digits 60½øÖÆ ÏÔʾֵ:45
Second:
ss two digits 60½øÖÆ
Ïà¹ØÎĵµ£º
1.´´½¨±í£º
a. ´´½¨xs±íÖмÆËã»úרҵѧÉúµÄ±¸·Ý
Create table xs_jsj as select * from xs where zym=’¼ÆËã»ú’;
b.ÍêÕûµÄÀý×Ó£º
¡¡¡¡¡¡¡¡¡¡ Create table test ......
author£ºskate
time£º2010-05-31
Ë÷ÒýÒ³¿éË鯬£¨Index Leaf Block Fragmentation£©
ÕâÆªÎÄÕ½«»á»Ø´ðÈçÏÂÎÊÌ⣺
ʲôÊÇË÷ÒýÒ³¿éË鯬£¿Ê²Ã´Ê±ºò±»ÖØÓã¿
ʲôÊǰë¿ÕË÷ÒýË鯬£¿Ê²Ã´Ê±ºò±»ÖØÓã¿
oracleµÄ±ê×¼Ë÷Òý½á¹¹ÊÇB×tree½á¹¹£¬Ò»¸öB×tree½á¹¹ÓÉÈýÖÖblock×é³É
¸ù¿é(root block):ÔÚB×treeÀïÓÐÇÒÖ ......
author£ºskate
time£º2010-05-31
ÎÒÃÇÔÚʹÓÃwindowsµÄʱºò£¬¶¼ÖªµÀÒª¶¨ÆÚÕûÀí´ÅÅÌË鯬£¬ÒòΪ´ÅÅÌË鯬»áÓ°ÏìÐÔÄÜ£¬¸ø¹ÜÀíÉÏ´øÀ´¶îÍâµÄ
¸ºµ£¡£ÄÇoracle¸üÊÇÈç´Ë£¬µ±Ëæ×ÅÊý¾ÝÔö¼Ó£¬oracle´¦Àíº£Á¿Êý¾Ý±¾Éí¾ÍÒѾºÜ·ÑÁ¦Á˰¡£¬Èç¹ûÔÙÓдóÁ¿
µÄË鯬£¬ÄǾÍÊÇÑ©ÉϼÓ˪°¡¡£ËùÒÔËéÆ¬ÒªÒýÆðdbaµÄ¸ß¶ÈÖØÊÓ£¬¾¡Ôç·¢ÏÖ¾¡Ôç´¦Àí¡£
莮 ......
Èç¹ûweb·½Ê½µÄem£¬isqlplus·ÃÎʲ»ÁË¡£
1. ¼ì²éÖ÷»úÃû/IP¡¢¶Ë¿ÚÊÇ·ñÕýÈ·
°²×°Ê±µÄÖ÷»úÃû/IP¡¢¶Ë¿Ú¼Ç¼ÔÚ$ORACLE_HOME/install/portlist.ini ÎļþÖС£
ȱʡÊÇ£º
Ò»°ãÓû§
http://ip:5560/isq ......
---------------------------------------------------------------------------
---- ±¾ÎÄΪandkylee¸öÈËÔ´´£¬ÇëÔÚ×ðÖØ×÷ÕßÀͶ¯³É¹ûµÄǰÌáϽøÐÐ×ªÔØ£»
---- ×ªÔØÎñ±Ø×¢Ã÷Ôʼ³ö´¦
:
http://blog.csdn.net/andkylee
--- 2010-05-31 22:56:43
---- ¹Ø¼ü×Ö£º oracle ·ÖÒ³ rownum
--------------------------------- ......