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

MyeclipseÖÐÁ¬½ÓOracleµÄ¾­µä´úÂë

 package cn.edu.bit.test;
import java.sql.*;
public class Jdbc {
 public static void main(String[] args)
 {
     try{ 
      Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
     System.out.println("×¢²á³É¹¦");    
     String URL = "jdbc:oracle:thin:localhost:1521:orcl";
      String user = "username";  //Á¬½ÓÊý¾Ý¿âµÄÓû§Ãû
      String password = "password";//Á¬½ÓÊý¾Ý¿âµÄÃÜÂë
      Connection conn = DriverManager.getConnection(URL, user, password); 
     System.out.println("Á¬½Ó³É¹¦"); 
      Statement st;
       st = conn.createStatement(); 
     ResultSet rs; 
       rs = st.executeQuery("select * from scott.project"); 
    while(rs.next()){ 
       System.out.println(rs.getString("time")); 
     } 
       }catch(Exception e)
     {     e.printStackTrace();    
    
     System.out.println("Á¬½Óʧ°Ü");    
   } 
      } 
}


Ïà¹ØÎĵµ£º

OracleÓëSQL ServerÊý¾Ý»¥Ò×ÐÔ£¨1£©

×÷Õß Haidong Ji ·­Òë GoodKid
ÎÒÃǵ±ÖеĴ󲿷ÖÈ˹¤×÷ÔÚÒ»¸öµ¥Ò»µÄ RDBMS ϵͳÖУ¬Èç MSSQL, Oracle, or IBM DB2¡£È»¶ø£¬ÎÒÃÇÈÕÒæ¸Ð¾õµ½£¬ÎÒÃÇÕý´¦ÓÚ²»Í¬µÄÊý¾Ý¿â»·¾³µ±Öв¢ÇÒÐèÒª½â¾öÊý¾ÝµÄ»¥ÓÃÐÔÎÊÌâ¡£
¾¡¹ÜÖ÷ÒªµÄ RDBMS ³§ÉÌÊÔͼȥ×ñÑ­¹ØÏµÊý¾Ý¿âÄ£ÐÍÔ­Àí£¬²¢ÇÒÓ÷dz£Ð¡µÄ²îÒìȥʵÏÖËüÃÇ¡£ÁíÍ⣬¼¸ºõÖ÷ÒªµÄ ......

ʹÓÃjava + oracle²åÈëclobÀàÐ͵ÄÊý¾Ý

 Ê¹ÓÃjava + oracle²åÈëclobÀàÐ͵ÄÊý¾Ý£¬ÐèÒªÓÃÒÔϵIJ½Ö裺
1¡¢½«Êý¾Ý²åÈëÊý¾Ý¿â£¬¶ÔÓÚclob×ֶΣ¬Ê¹ÆäΪ¿ÕclobÊý¾Ý¡£ÀýÈ磺insert into test values(1,empty_clob())";
2¡¢´ÓÊý¾Ý¿âÖÐÈ¡³ö²åÈëµÄclob×ֶΣ¬²¢½«Æä¸³Öµ¸øoracle.sql.clobÀàÐ͵ıäÁ¿¡£ÀýÈç
String sqll="select content from test where id=1 for upda ......

ѧϰOracleÖÐBlobºÍClobÒ»µãµãÐĵÃ

BlobÊÇÖ¸¶þ½øÖÆ´ó¶ÔÏóÒ²¾ÍÊÇÓ¢ÎÄBinary Large ObjectµÄËùд£¬¶øClobÊÇÖ¸´ó×Ö·û¶ÔÏóÒ²¾ÍÊÇÓ¢ÎÄCharacter Large ObjectµÄËùд¡£Óɴ˿ɼûÕâÁ¾¸öÀàÐͶ¼ÊÇÓÃÀ´´æ´¢´óÁ¿Êý¾Ý¶øÉè¼ÆµÄ£¬ÆäÖÐBLOBÊÇÓÃÀ´´æ´¢´óÁ¿¶þ½øÖÆÊý¾ÝµÄ£»CLOBÓÃÀ´´æ´¢´óÁ¿Îı¾Êý¾Ý¡£
ÄÇôÓÐÈ˿϶¨ÒªÎʼÈÈ»ÒѾ­ÓÐVARCHARºÍVARBINARYÁ½ÖÐÀàÐÍ£¬ÎªÊ²Ã´»¹ÒªÔÙÊ ......

oracle±äÁ¿ÀàÐÍ

 oracle±äÁ¿ÀàÐÍ
±êÁ¿ÀàÐÍ
varchar2(n)  ÓÃÓÚ¶¨Òå¿É±ä³¤¶ÈµÄ×Ö·û´®  nÓÃÓÚÖ¸¶¨×Ö·û´®µÄ×î´ó³¤¶È Æä×î´óֵΪ32767×Ö½Ú ±ØÐëÖ¸¶¨n
char(n)  ÓÃÓÚ¶¨Òå¹Ì¶¨³¤¶ÈµÄ×Ö·û´® ÆäÖÐnÓÃÓÚÖ¸¶¨×Ö·û´®µÄ×î´ó³¤¶È£¬Æä×î´óֵΪ32767  Èç¹û²»Ö¸¶¨n ĬÈÏÊÇ1
number(p,s)¸ÃÊý¾ÝÀàÐÍÓÃÓÚ¶¨Òå¹Ì¶¨³¤¶ÈµÄÕûÊýºÍ¸¡µã ......

oracle ³£ÓñêÁ¿ÀàÐÍ

 £¨1£© varchar2(n):¸ÃÊý¾ÝÀàÐÍÓÃÓÚ¶¨Òå¿É±ä³¤¶ÈµÄ×Ö·û´®£¬ÆäÖÐ n ÓÃÓÚÖ¸¶¨×Ö·û´®µÄ×î´ó³¤¶È£¬Æä×î´óֵΪ 32767 ×Ö½Ú¡£µ±Ê¹ÓøÃÊý¾ÝÀàÐͶ¨Òå±äÁ¿ÊÇ£¬±ØÐë×¢Ò⣬ÔÚPL/SQL¿éÖÐʹÓøÃÊý¾ÝÀàÐͲÙ×Ývarchar2±íÁÐʱ£¬ÆäÊýÖµµÄ³¤¶È²»Ó¦¸Ã³¬¹ý 4000 ×Ö½Ú¡£
......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ