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

ÏòOracle²åÈëtimestampÀàÐÍ×Ö¶Î

 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 line 1: ORA-01843: not a valid month
Ó¦¸ÃÖ¸¶¨ÓÃamerican×Ö·û¼¯²åÈë¾Í¶ÔÁË£º
[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','nls_date_language=american'));
1 row created.


Ïà¹ØÎĵµ£º

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 ......

Oracle Shrink Table

½ñÌìÔÚ´÷Ã÷Ã÷ͬѧµÄÒ»¸ö»ØÌûÀï¸øÁ˸ö¹ØÓÚShrinkÃüÁîµÄÌû×Ó£¬×ª¹ýÀ´Ñ§Ï°Ñ§Ï°~
=============================================================================================
´Ó10g¿ªÊ¼£¬oracle¿ªÊ¼ÌṩShrinkµÄÃüÁ¼ÙÈçÎÒÃǵıí¿Õ¼äÖÐÖ§³Ö×Ô¶¯¶Î¿Õ¼ä¹ÜÀí (ASSM),¾Í¿ÉÒÔʹÓÃÕâ¸öÌØÐÔËõС¶Î£¬¼´½µµÍHWM¡£ÕâÀïÐèҪǿµ÷ ......

oracle»ù´¡ÈëÃŽ̲Ä

 
½¨±í
create table <table_name>(
column_name1 column_type [not null] [check (expression)]
    [default value] [primary key][references <table_name>(column_name)],
column_name2 column_type [not null] [check (expression)]
    [default value] [prima ......

Oracle×Ô´úµÄÏ̳߳Ø

µÚÒ»¸öÀࣺ
/**
 *
 * ´æ·ÅoracleÊý¾Ý¿âµÄÁ´½ÓÐÅÏ¢¡£
 *
 * @author ZhongHuiQiang
 *
 */
public interface IOracleDAOInfor {
 String DB_SERVER_HOSET = "localhost";
 String DB_SERVER_NAME = "ppoo";
 String DB_USER_NAME = "system";
 String DB ......

SQL ServerºÍOracle³£Óú¯Êý¶Ô±È


Êýѧº¯Êý
1.¾ø¶ÔÖµ
S:select abs(-1) value
O:select abs(-1) value from dual
2.È¡Õû(´ó)
S:select ceiling(-1.001) value
O:select ceil(-1.001) value from dual
3.È¡Õû£¨Ð¡£©
S:select floor(-1.001) value
O:select floor(-1.001) value from dual
4.È¡Õû£¨½ØÈ¡£©
S:select cast(-1.002 as in ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ