Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

ORACLEÊý¾Ý¿â²åÈëÐÔÄܲâÊÔ

ORACLEÊý¾Ý¿â²åÈëÐÔÄܲâÊÔ
 
MKing
2010-3-8
 
²âÊÔ»·¾³»ù±¾ÐÅÏ¢£º
OS£ºWindows XP sp3
DB£ºOracle 9.2.0.1 δÆôÓù鵵
DBÖØ×öÈÕÖ¾Îļþ´óС£º100MB
Ó²ÅÌÐͺţºSAMSUNG HD161GJ£¨SATA-300,160G,7200rpm,8M cache£©
CPU£ºIntel Core2 E8400£¨3.0G£©
Äڴ棺2G
 
ͨ¹ýHD TuneµÃµ½µÄÓ²ÅÌ»ù±¾²âÊÔÐÅÏ¢£¬
IOPS£º66
¶ÁÈ¡£º90MB/s
дÈ룺82MB/s
 
²âÊÔ±í½Å±¾£º
 
create table T_EMPLOYEE
(
  ID            NUMBER(10) not null,
  NAME          VARCHAR2(20) not null,
  CREATE_DATE   DATE default sysdate not null,
  BIRTHDAY      DATE,
  ADDRESS       VARCHAR2(200),
  EMAIL         VARCHAR2(200),
  MOBILEPHONE   VARCHAR2(11),
  TELEPHONE     VARCHAR2(20),
  IDENTITY_CARD VARCHAR2(18),
  WEIGHT        NUMBER,
  HEIGHT        NUMBER
)
 
 
²åÈë10ÍòÌõ¼Ç¼£¬²ÉÓÃJava JDBC·½Ê½µÄ²âÊÔ½á¹ûÈçÏÂ(µ¥Î»£ºÃë)£º
 
Ö´Ðз½Ê½
OCI
TCP/IP
OCI
IPC
thin
AutoCommit=true
thin
AutoCommit=false
Statement(test1)
69.84
67.03
66.96
42.81
PreparedStatement(test2)
40
37.18
39.21
12.66
PreparedStatement Batch(test3)
51.72
50.78
2.81
2.81
 
 
´Ó²âÊÔ½á¹û¿ÉÒÔ¿´³ö£¬²ÉÓÃthinÁ¬½Ó·½Ê½ batch²åÈëµÄÐÔÄÜ×îºÃ£¬¶ø²ÉÓÃociµÄbatch²åÈëÐÔÄÜδµÃµ½Ìá¸ß£¬Ò²¿ÉÄÜÊÇbug¡£
¼ÇµÃÒÔÇ°ÔÚORACLEÎĵµÀï˵²ÉÓÃociģʽµÄÐÔÄÜ×îºÃ£¬9iÖо­¹ý²âÊÔÍêÈ«²»³ÉÁ¢£¬ÎÒÏë¿ÉÄÜÊÇÒÔÇ°java±¾ÉíÐÔÄܵÄÎÊÌ⣬ÏÖÔÚjavaÓïÑÔµÄÐÔÄÜÒѾ­·Ç³£ºÃÁË£¬thinÁ¬½Ó·½Ê½²»¹ÜÊÇ´Ó¹ÜÀí»¹ÐÔÄÜ·½ÃæÀ´Ëµ¶¼ÊÇÊ×Ñ¡ÁË¡£
 
×¢£º²ÉÓÃociµÄbatch²åÈëÐÔÄÜδµÃµ½Ìá¸ßȷʵÊÇBUG£¬ºóÀ´°ÑORACLE¿Í»§¶ËÉý¼¶µ½9.2.0.8£¬»¨µÄʱ¼äÖ»Òª6s£¬µ«»¹ÊDZÈthinµÄ·½Ê½²î¡£
 
ÒÔÏÂÊDzâÊÔ³ÌÐòÔ´Â룺
import java.sql.*;
import java.util.Calendar;
 
public class inserttest {
 


Ïà¹ØÎĵµ£º

±±´óÇàÄñoracleѧϰ±Ê¼Ç4 5

sql plus ±£´æsqlÓï¾ä
save 'd:\sql.txt';½«oracle»º´æÇøÖеÄsqlÓï¾ä´æÈëÎļþ¡£
get 'd:\sql.txt';´ËʱsqlÓï¾ä±»¼ÓÔص½oracle»º´æÇø£¬Ê¹ÓÃrun;ÃüÁîÖ´ÐÐsqlÓï¾ä¡£
@'d:\sql.txt';¼ÓÔØsqlÓï¾ä²¢Ö±½ÓÖ´ÐС£
oracleÖеĺ¯Êý
 
1. ת»»º¯Êý
TO_CHAR(number[,format])
½«Ò»¸öÊýֵת»»³ÉÓëÖ®µÈ¼ÛµÄ×Ö·û´®.Èç¹û²»Ö¸ ......

oracleÖ´Ðмƻ®

±¾ÎĽéÉÜÁËORACLEÖ´Ðмƻ®µÄһЩ»ù±¾¸ÅÄ¹©Ñ§Ï°Ó¦Óá£
Ò»£®Ïà¹ØµÄ¸ÅÄî
RowidµÄ¸ÅÄrowidÊÇÒ»¸öαÁУ¬¼ÈÈ»ÊÇαÁУ¬ÄÇôÕâ¸öÁоͲ»ÊÇÓû§¶¨Ò壬¶øÊÇϵͳ×Ô¼º¸ø¼ÓÉϵġ£¶Ôÿ¸ö±í¶¼ÓÐÒ»¸örowidµÄαÁУ¬µ«ÊDZíÖв¢²»ÎïÀí´æ´¢ROWIDÁеÄÖµ¡£²»¹ýÄã¿ÉÒÔÏñʹÓÃÆäËüÁÐÄÇÑùʹÓÃËü£¬µ«ÊDz»ÄÜɾ³ý¸ÄÁУ¬Ò²²»ÄܶԸÃÁеÄÖµ½øÐÐÐ޸ġ ......

(ת)oracle 10g xe Îҵݲװʵ¼ù¼°¼òµ¥ÅäÖùý³Ì

Îҵݲװ¹ý³Ì
1¡¢±à¼­ /etc/apt/sources.list £º
    sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak #±¸·Ý
    sudo gedit /etc/apt/sources.list
    ¼ÓÈëÏÂÃæÕâ¸öÔ´£º
        deb http://oss.oracle.com/debian unst ......

OracleÖм¸¸ö¹ØÓÚÈÕÆÚ·½ÃæµÄSQLʵÀý

¡í1:È¡µÃµ±Ç°ÈÕÆÚÊDZ¾Ôµĵڼ¸ÖÜ
SQL> select to_char(sysdate,'YYYYMMDD W HH24:MI:SS') from
dual;

TO_CHAR(SYSDATE,'YY
-------------------
20030327 4 18:16:09

SQL> select to_char(sysdate,'W') from dual;

T
-
4 ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ