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

oracleÁ¬½ÓÊý¾Ý¿â²âÊÔ´úÂë

oracleÁ¬½ÓÊý¾Ý¿â²âÊÔ´úÂë
/**
*
* ˵Ã÷£º
* £¨1£©±¾ÀýʹÓÃJDBC_ODBCÇŽøÐÐÊý¾Ý¿âÁ¬½Ó£¬¹Ê´ËÐèÒªODBCÊý¾ÝÔ´
* £¨2£©±¾ÀýÖÐSQLΪ¸üÐÂÓï¾ä£¬¹Ê´ËʹÓÃÔØÌåµÄexecuteUpdate·½·¨£¬²¢ÇÒ·µ»ØÊÜÓ°Ïì¼Ç¼Êý
* (3) ÅäÖÃÁ¬½ÓORACLEµÄodbcÊý¾ÝÔ´ora
*/
//µ¼ÈëËùÐèÀà°ü
import java.sql.*;
public class JdbcTestOra2 {
public static void main(String args[]) {
    try {
      //×°ÔØÇý¶¯³ÌÐò
      Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
     
      //½¨Á¢Êý¾Ý¿âÁ¬½Ó
      Connection con =
DriverManager.getConnection("jdbc:odbc:ora","scott","tiger");
     
      //´´½¨SQLÓï¾äÔØÌå
      Statement st = con.createStatement();
     
      //Ö´ÐÐSQLÓï¾ä£¬½ÓÊÕÖ´Ðнá¹û
      int rs = st.executeUpdate("update emp set
comm=1000");
           
      //´¦Àí½á¹û
      System.out.println("Ð޸ļǼÊý£º"+rs);
     
      //ÊÍ·ÅÊý¾Ý¿â×ÊÔ´£¬×¢Òâ˳Ðò
      st.close();
      con.close();           
    }
    catch (Exception e) {
      e.printStackTrace(System


Ïà¹ØÎĵµ£º

oracleÈÕÆÚº¯Êý¼¯½õ


Ò»¡¢ ³£ÓÃÈÕÆÚÊý¾Ý¸ñʽ
1.Y»òYY»òYYY ÄêµÄ×îºóһ룬Á½Î»»òÈýλ
SQL> Select to_char(sysdate,'Y') from dual;
TO_CHAR(SYSDATE,'Y')
--------------------
7
SQL> Select to_char(sysdate,'YY') from dual;
TO_CHAR(SYSDATE,'YY')
---------------------
07
SQL> Select to_char(sysdate,'YYY') from ......

Oracle waits event:DB File Sequential Read

The DB File Sequential Read wait event generally indicates a single block read (an index read,
for example). A large number could indicate poor joining orders of tables or unselective indexing.
This number will certainly be large (normally) for a high-transaction, well-tuned system. You ......

linuxÉÏʹÓÃrlwrap ½â¾öoracle¿ÉÒÔÉÏϼü²é¿´ÃüÁî

linux ÉϵÄoracle sqlplus ²»ÄÜÀûÓà ÉÏ, Ï ¼üÀ´²é¿´ÃüÁËÑË÷µ½½â¾öÎÊÌâµÄ°ì·¨£¬ÕûÀíÈçÏÂ
°²×°Èí¼þrlwrap¿ÉÒÔ½â¾öÕâ¸öÎÊÌ⣬¸ÃÈí¼þÊÇÓÃcдµÄ³ÌÐò
¹Ù·½ÏÂÔØµØÖ·£ºhttp://utopia.knoware.nl/~hlub/uck/rlwrap/
°²×°¹ý³Ì£º
ÎÒÃÇÒ²¿ÉÒԲ鿴½âѹºóµÄtar°ü£¬²é¿´README°ïÖúÎļþ
shell>tar -zxvf rlwrap-0.36.tar.gz
sh ......

Oracle wait problems and potential solutions

Wait Problem Potential Fix Sequential Read Indicates many index reads—tune the code (especially joins) Scattered Read Indicates many full table scans—tune the code; cache small tables ......

Óà Navicat for Oracle ¹ÜÀí Oracle10g/11g Êý¾Ý¿â


    Navicat for xxx ÊÇÒ»¸öÓÅÐãµÄÊý¾Ý¿â¹ÜÀí¿Í»§¶Ë£¬ÓÐ MySQL¡¢Oracle µÈ°æ±¾¡£½¨Òé´ó¼Ò×îºÃÓà Enterprise °æ±¾£¬¹¦ÄÜÈ«ÃæÒ»Ð©£¬µ«½ÏÖ®ÓÚÃâ·ÑµÄ Lite °æ£¬ÆóÒµ°æ¿ÉÊÇÒª»¨Òø×ÓÂòµÄ¡£
    °²×° Navicat for Oracle ºó£¬Ê×ÏÈÐèÒª½¨Ò»¸ö“Á¬½Ó”£¬×÷Ϊij¸ö¹ÜÀíÈÎÎñµÄ±êʶ£¬ÒòΪ×÷Î ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ