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

jspÁ¬½Óoracle£¨javabean£©


package DBbean;
import java.sql.*;
public class ConnBean
{
private Connection con;
//³õʼ»¯Á¬½Ó¡£
public ConnBean()
{
        
  try
  {
   Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
   String url="jdbc:oracle:thin:@localhost:1521:orcl";
         String user="scott";
         String password="tiger";
         con= DriverManager.getConnection(url,user,password);
  }
  catch (InstantiationException e)
  {
      e.printStackTrace();
  } catch (IllegalAccessException e)
  {
      e.printStackTrace();
  }
  catch(ClassNotFoundException e)
   {
    System.out.println("DRIVER NOT FOUND!");
    con=null;
   }
  catch(SQLException e)
   {
    con=null;
   }
    
}
//²éѯÊý¾Ý¿â
public  ResultSet getContact(String id)
{
  try
  {
   Statement stm=con.createStatement();
   ResultSet result=stm.executeQuery("select * from student where id='"+id+"'");
   return result;
  }
  catch(Exception e)
  {
  }
  return null;
}
}  


Ïà¹ØÎĵµ£º

Oracle ¶àÐÐתÁк¯Êý

OracleÖÐʹÓÃWMSYS.WM_CONCATº¯Êý½øÐжàÐÐתÁÐ
Ô­Êý¾Ý£º
rank   name 
AA      NAME1
AA      NAME2
AA      NAME3 
BB      NAME4
BB      NAME5
SQL>select  trim(t.rank) as rank,
   &nbs ......

oracle PL SQLѧϰ°¸Àý£¨Ò»£©

¡¾Ê¾Àý1.1¡¿  ²éѯ¹ÍÔ±±àºÅΪ7788µÄ¹ÍÔ±ÐÕÃûºÍ¹¤×Ê¡£
  ²½Öè1£ºÓÃSCOTT/TIGERÕË»§µÇ¼SQL*Plus¡£
  ²½Öè2£ºÔÚÊäÈëÇøÊäÈëÒÔϳÌÐò£º
   /*ÕâÊÇÒ»¸ö¼òµ¥µÄʾÀý³ÌÐò*/
  SET SERVEROUTPUT ON
  DECLARE--¶¨Ò岿·Ö±êʶ
    v_name  VARCHAR2 ......

Oracle ÈÕÆÚ²éѯÓï¾äС½á

²éѯÐÇÆÚ¼¸:
select to_char(sysdate,'day') from dual;
²éѯ¼¸ºÅ:
select to_char(sysdate,'dd') from dual;
²éѯСʱÊý:
select to_char(sysdate,'hh24') from dual;
²éѯʱ¼ä:
select to_char(sysdate,'hh24:mi:ss') from dual;
²éѯÈÕÆÚʱ¼ä:
select to_char(sysdate,'yyyy-mm-dd hh24:mi:ss') from dual;
²é ......

oracle ³£¼ûºǫ́½ø³Ì

³£¼ûºǫ́½ø³Ì°üÀ¨:
• Êý¾Ý¿âд½ø³Ì (DBWn):½«Êý¾Ý¿â»º³åÇø¸ßËÙ»º´æÖеľ­¹ýÐ޸ĵĻº³åÇø(»ÒÊý¾Ý»º ³åÇø)ÒÔÒì²½·½Ê½Ð´Èë´ÅÅÌ
• ÈÕ־д½ø³Ì (LGWR):½«ÈÕÖ¾»º³åÇøÖгÆÎªÖØ×öÐÅÏ¢µÄ»Ö¸´ÐÅϢдÈë´ÅÅÌÉϵÄÖØ×öÈÕ Ö¾Îļþ
• ¼ì²éµã½ø³Ì (CKPT):ÔÚ¿ØÖÆÎļþºÍÿ¸öÊý¾ÝÎļþÍ·ÖмǼ¼ì²éµãÐÅÏ¢
• ϵͳ¼àÊÓÆ÷½ø³ ......

oracleÊý¾ÝÉó¼Æ AUDIT

•ºÎΪÉó¼Æ
Êý¾Ý¿âÉ󼯣¬¾ÍÊǶÔÊý¾Ý¿âµÄ»î¶¯×ö¸ú×ټǼ£¬Ö÷Òª°üÀ¨Êý¾Ý¿âÁ¬½Ó£¬SQLÓï¾äÖ´ÐУ¬Êý¾Ý¿â¶ÔÏó·ÃÎÊÕâЩ·½ÃæµÄ¸ú×ټǼ¡£
•ÏÖʵ×÷ÓÃ
°²È«¿ØÖÆ¡¢¸ú×ÙÊý¾Ý±ä»¯¡¢³ÌÐòBUGµ÷ÊÔ¡¢×Ô¶¨ÒåµÄÊý¾Ý»ã×Ü·ÖÎö¡¢²Ù×÷ÈÕÖ¾
•´æ´¢·½Ê½
Ò»ÖÖÊÇ´æ´¢ÔÚ²Ù×÷ϵͳÎļþÖУ¬Ò»ÖÖÊÇ´æ´¢ÔÚsystem±í¿Õ¼äÖеÄSYS.AUD$±íÖÐ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ