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 IDÊÇÖ÷½¡£¬ÊµÏÖ²åÈëÒ»¸öNAME,ID×Ô¶¯Ôö¼Ó
SQL>   create   table   t1  
      2     (  
      3         id       number,  
      4         name   varchar2(10)  
      5     )  
      6     ;  
 SQL>   create   sequence   T1ID_SEQ  
      2     minvalue   1  
      3     maxvalue   999999  
      4     start   with   1  
      5     increment   by   1  
      6     cache   20  
      7     ;
´´½¨´¥·¢Æ÷
sql> create or replace trigger tr
 before insert on table for each row
 begin
  select to_char(seq.nextval) into :new.id form dual;
 end tr;
 /


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jdbcÁ¬½ÓOracle

      ËäȻѧϰJavaºÜ¾ÃÁË£¬×Ô¼ºÒ²Á¬½Ó¹ýһЩÊý¾Ý¿â£¬±ÈÈçmysqlÖ®ÀàµÄ£¬Èç½ñÄØ£¬Ò²Ñ§Ï°ÁËÒ»¶Îʱ¼äµÄOracle£¬È»¶øÄØ£¬½ñÌìÊÇÎÒµÚÒ»´ÎÁ¬½ÓOracle£¬ºÙºÙ£¬Ó¦¸Ã»¹²»ËãÌ«³Ù°É¡£
    ½ñÌìÄØ£¬Óе㱿׾£¬´ó¼ÒĪЦ£¡
    ÎÒÕâÊÇÒ»¸ö²éѯÀý×Ó
    Ê×ÏÈ£¬Ô ......

OracleºÍMSSQLÖÐÑ­»·µÄʹÓÃ


 ORACLE
CREATE OR REPLACE FUNCTION SETSTATE(OLDVALUE VARCHAR2, POS NUMBER, SVALUE VARCHAR2)
RETURN VARCHAR2
IS
RETURN_VALUE VARCHAR2 (20);
LEN NUMBER(8);
I NUMBER(8);
TEMP_VALUE VARCHAR2(1);
BEGIN
     LEN := LENGTH(OLDVALUE);
     IF POS > ......

ORACLE to_charº¯ÊýÏê½â

 The following are number examples for the to_char function.
to_char(1210.73, '9999.9')
would return '1210.7'
to_char(1210.73, '9,999.99')
would return '1,210.73'
to_char(1210.73, '$9,999.00')
would return '$1,210.73'
to_char(21, '000099')
would return '000021'
The following is a list ......

oracleÒì¹¹¡¢Í¬¹¹Êý¾Ý¿âÖ®¼äµÄͬ²½×ÊÁÏ£¨²Î¿¼£©

1)SQL ServerÁ´½Ó·þÎñÆ÷ Linked Server·½Ê½£¨SQLServer×÷ΪԴ·þÎñÆ÷£©£º
http://www.cnblogs.com/riccc/archive/2009/07/23/sql-server-linked-server.html
2)Oracle¸ß¼¶¸´ÖÆ£¨oracleÊý¾Ý¿âÖ®¼ä¸´ÖÆ£©£º
http://www.chinaunix.net/bbsjh/8/54.html
ÆäËû¼¼Êõ·½·¨£º
  snapshot  
  Replication   ......
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