Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

oracleÖеÄto_char()

½éÉÜto_char(Êý×Ö, ‘¸ñʽ’)£¬±È½Ï³£Óõĸñʽ
9   ±íʾÓÐЧλÊý
0   ÓÃ0²¹×ãλÊý
B   Óÿոñ²¹×ãλÊý
Ô­ÊýµÄλÖÃÓÐʵ¼ÊÊý×ÖռλµÄʱºò£¬0ºÍ9µÄЧ¹ûÊÇÒ»ÑùµÄ¡£
0ºÍ9µÄÇø±ðÔÚÓÚ¸ñʽÖеÄÄÇһλÖÃʵ¼ÊÊý×ÖûÓÐվλµÄÇé¿öÏ¡£
select to_char(0.45,'0.99'); ½á¹ûÊÇ0.45
select to_char(0.45,'9.99'); ½á¹ûÊÇ.45
select to_char(2.45,'0.99'); ½á¹ûÊÇ2.45
select to_char(2.45,'9.99'); ½á¹ûÊÇ2.45
ÒòΪ0.45µÄÓÐЧÊý×ÖÊÇСÊýµãºóµÚһλ£¬Ð¡ÊýµãǰûÓÐÓÐЧÊý×Ö£¬¸ÄΪÈç¹ûÏëÒªÏÔʾµÄ»°£¬¾ÍÒªÓÃ0À´²¹³äλÊý¡£
Àý×Ó£º
SELECT
to_char(123.45, '0009.9'),
to_char(123.45, '9999.9'),
to_char(123.45, 'B999.9')
from dual;
½á¹ûΪ
TO_CHAR(123.45,'0009.9') TO_CHAR(123.45,'9999.9') TO_CHAR(123.45,'B999.9')
------------------------ ------------------------ ------------------------
0123.5 123.5 123.5


Ïà¹ØÎĵµ£º

oracle ±í¿Õ¼ä²Ù×÷

oracle±í¿Õ¼ä²Ù×÷Ïê½â
  1
  2
  3×÷Õߣº   À´Ô´£º    ¸üÐÂÈÕÆÚ£º2006-01-04 
  5
  6 
  7½¨Á¢±í¿Õ¼ä
  8
  9CREATE TABLESPACE data01
 10DATAFILE '/ora ......

¸ßÐÔÄÜ Oracle JDBC ±à³Ì

¸ßÐÔÄÜ Oracle JDBC ±à³Ì
Á˽âÈçºÎÀûÓÃÁ¬½ÓºÍÓï¾ä³ØÌØÐÔÀ´Ìá¸ß Oracle Çý¶¯µÄ JDBC ³ÌÐòµÄÐÔÄÜ¡£

×÷ÕߣºYuli Vasiliev
2009 Äê 4 Ô·¢²¼
ʹÓÃÖîÈçÁ¬½Ó³ØºÍÓï¾ä³ØµÈ³Ø¼¼Êõ¿ÉÒÔÏÔÖøÌá¸ßÊý¾Ý¿âÃܼ¯ÐÍÓ¦ÓóÌÐòµÄÐÔÄÜ£¬ÒòΪÕâÑù¿ÉÒÔʵÏÖ¶ÔÏóÖØÓ㬶øÎÞÐ軨·Ñʱ¼äºÍ×ÊÔ´ÖØÐ´´½¨¶ÔÏó¡£
Èç¹ûÓ¦ÓóÌÐòÓëÊý¾Ý¿âƵ·±½»»¥²¢Ç ......

OracleÊý¾Ýµ¼ÈëMySQL

 ## Oracle Êý¾Ýµ¼Èëµ½ Mysql ##                             
__________________________________________                                 ......

³¹µ×Ð¶ÔØORACLE(WINXP)

ÓÃoracleµÄÐ¶ÔØ³ÌÐò²¢²»ÄÜÍêÈ«Ð¶ÔØ¸É¾»¡£Èç֮ǰµÄÃüÃûµÄoracle sid ²»ÄÜÔÙʹÓ᣻áÌáʾsid´æÔÚ¡£ÏÂÃæÊÇÔÚwinxpÏÂÍêÈ«Ð¶ÔØoracleµÄ·½·¨¡£
1¡¢¿ªÊ¼£­£¾ÉèÖã­£¾¿ØÖÆÃæ°å£­£¾¹ÜÀí¹¤¾ß£­£¾·þÎñ  
     Í£Ö¹ËùÓÐOracle·þÎñ¡£  
2¡¢¿ªÊ¼£­£¾³ÌÐò£­£¾Oracle  -  OraHome81£­£¾Oracle   ......

OracleÊý¾Ý¿âÓαêʹÓôóÈ«

SQLÊÇÓÃÓÚ·ÃÎÊORACLEÊý¾Ý¿âµÄÓïÑÔ£¬PL/SQLÀ©Õ¹ºÍ¼ÓÇ¿ÁËSQLµÄ¹¦ÄÜ£¬Ëü ͬʱÒýÈëÁ˸üÇ¿µÄ³ÌÐòÂß¼­¡£ PL/SQLÖ§³ÖDMLÃüÁîºÍSQLµÄÊÂÎñ¿ØÖÆÓï¾ä¡£DDLÔÚPL/SQLÖв»±»Ö§³Ö£¬Õâ¾ÍÒâζ×÷ÔÚPL/SQL³ÌÐò¿éÖв»ÄÜ´´½¨±í»òÆäËûÈκζÔÏ󡣽Ϻà µÄPL/SQL³ÌÐòÉè¼ÆÊÇÔÚPL/SQL¿éÖÐʹÓÃÏóDBMS_SQLÕâÑùµÄÄÚ½¨°ü»òÖ´ÐÐEXECUTE IMMEDIATEÃüÁÁ¢¶¯Ì ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ