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

oracle²åÈëʱÈçºÎ²åÈëuuId

 ÊÇÏëÉú³ÉGUIDÂð£¿
SQL> select   sys_guid() from dual ;
SYS_GUID()
--------------------------------
F18031C69D8345DEB305D4B2E796A282
Äã¿ÉÒ԰ѱíµÄÖ÷¼ü×ֶεÄȱʡֵÉèΪsys_guid()
insert into luxian_info (id) values(sys_guid());


Ïà¹ØÎĵµ£º

Oracle INTERVAL DAY TO SECONDÊý¾ÝÀàÐÍ

INTERVAL DAY TO SECONDÊý¾ÝÀàÐÍ
OracleÓï·¨:
INTERVAL '{ integer | integer time_expr | time_expr }'
{ { DAY | HOUR | MINUTE } [ ( leading_precision ) ]
| SECOND [ ( leading_precision [, fractional_seconds_precision ] ) ] }
[ TO { DAY | HOUR | MINUTE | SECOND [ (fractional_seconds_precision) ] } ......

½ÌÄã°²×°oracle£¡

 Oracle ×°Åä¹£¸Å
Òª²é¿´¿ÉÓà RAM ºÍ»¥»»¿Õ¼ä´óС£¬ÔË×÷ÒÔ´ÎÏÂÁ
grep MemTotal /proc/meminfo
grep SwapTotal /proc/meminfo
±ÈÈ磺
# grep MemTotal /proc/meminfo
MemTotal:512236 kB
# grep SwapTotal /proc/meminfo
SwapTotal:1574360 kB
½ÓÏÂÀ´£¬´´ÔìÓÃÀ´×°ÅäºÍά»¤ Oracle Ê®g Èí¼þµÄ Linux ×éºÍÓû ......

ORACLEÖÐÈçºÎ²éÕÒÌØ¶¨¶ÔÏóÖеÄÎı¾ÄÚÈÝ~

SQL> select dbms_metadata.get_ddl('PROCEDURE','PRO2','SCOTT') text from dual;
TEXT
----------------------------------------
CREATE OR REPLACE PROCEDURE "SCOTT"."P
RO2"
is
begin
dbms_output.put_line('wangpeng up');
end;
SQL> select dbms_metadata.get_ddl('PROCEDURE','PRO1','SCOTT') te ......

JAVAʵÏÖOracleÊý¾Ý¿âµÄÊý¾ÝµÄ·ÖÒ³ÏÔʾ

 
×î½üѧÁËservletºÍoracle£¬Ò²¾Í°ÑËûÃǽáºÏÏ£¬×ö¸ö·ÖÒ³µÄÒ³Ãæ³öÀ´¡£ËãÊÇÒ»ÖÖ¸´Ï°°É¡£
1.Ê×ÏÈÊÇoracleµÄ·ÖÒ³ÏÔʾSQLÓï¾ä£º
select * from(select a.*, rownum  rn from (select * from Person) a where  rownum <= MaxN ......

ORACLE×ÔÔö³¤×Ö¶ÎʵÏÖ£¨×ª£©

ÏîÄ¿ÖУ¬ÐèÒª½¨Á¢×ÔÔö³¤×ֶΣ¬µ«Åöµ½oracle±¾Éí²»Ö§³Ö´ËÖÖÀàÐ͵Ä×ֶΣ¬Ö»ºÃÓñðµÄ°ì·¨¡£ 
ORACLE×ÔÔö³¤×Ö¶ÎʵÏÖ£¨×ª£©
     Ê×ÏÈ£¬ÄãÒªÓÐÒ»ÕÅ±í£¡
       CREATE TABLE example(
          &nbs ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ