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

javaÓësql server 2005µÄÏà¹Ø²Ù×÷

//±¾³ÌÐòÁ¬½ÓµÄÊÇsql server 2005£¬ÓëÁ¬½Ósql server 2000Óе㲻ͬ£ºdriverNameºÍURL¶¼²»Í¬
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class create{
   public void getConnection() throws InstantiationException, IllegalAccessException, ClassNotFoundException, SQLException
   {
    Statement stmt = null;
    Connection  dbConn;
    ResultSet rs;
        String user="sa";
        String pass="";
        String driverName = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
        String URL = "jdbc:sqlserver://localhost:1433;DatabaseName=tempdb";
        try{
         Class.forName(driverName).newInstance();
          System.out.println("ok");
          dbConn = DriverManager.getConnection(URL,user,pass);
           System.out.println("Connection Successful!");
          stmt = dbConn.createStatement(); // »ñµÃÖ´ÐÐSQLÓïÑÔµÄÈÝÆ÷
          rs=dbConn.getMetaData().getTables(null, null, "testTb", null);
          if(rs.next()){
           System.out.println("testTb´æÔÚ!ÔÛÏÖÔÚ°ÑËüɾÁ˰ɣ¡");
           stmt.executeUpdate("drop table testTb");
              System.out.println("»ØÍ·ÔÙ¿´¿´£¬Ã»Á˰ɣ¿");
      &nb


Ïà¹ØÎĵµ£º

Java NIO APIÏê½â

 
Java NIO APIÏê½â
ÔÚJDK
1.4ÒÔǰ£¬JavaµÄIO²Ù×÷¼¯ÖÐÔÚjava.ioÕâ¸ö°üÖУ¬ÊÇ»ùÓÚÁ÷µÄ×èÈû£¨blocking£©API¡£¶ÔÓÚ´ó¶àÊýÓ¦ÓÃÀ´Ëµ£¬ÕâÑùµÄAPIʹÓúܷ½
±ã£¬È»¶ø£¬Ò»Ð©¶ÔÐÔÄÜÒªÇó½Ï¸ßµÄÓ¦Óã¬ÓÈÆäÊÇ·þÎñ¶ËÓ¦Óã¬ÍùÍùÐèÒªÒ»¸ö¸üΪÓÐЧµÄ·½Ê½À´´¦ÀíIO¡£´ÓJDK 1.4Æð£¬NIO
API×÷Ϊһ¸ö»ùÓÚ»º³åÇø£¬²¢ÄÜÌṩ·Ç×èÈû(non-blo ......

JavaÓÅ»¯±à³Ì

1.       ÔÚCÓïÑÔÖУ¬ÎÒÃÇͨ³£Ï°¹ß°ÑÐèÒªµÄ¶ÔÏóÉêÃ÷·ÅÔÚº¯ÊýµÄ¿ªÍ·£¬µ«ÆäʵÕâÊǰװ×ÀË·ÑÁËÄڴ棬ÔÚJavaÖУ¬²»µ½ÐèÒªµÄʱºò£¬Çë²»Òª´´½¨¶ÔÏó¡£
2.       À¬»ø»ØÊջ᲻¶¨ÆÚµÄËÑË÷ÒѾ­Ã»ÓÐÓõĶÔÏó£¬È»ºóÊͷŶÔÏóµÄÄڴ棬µ«ÕâÖÖËÑË÷ÊDZȽϺÄ×ÊÔ´µÄ¡£ÎªÌá¸ßЧÂÊ£ ......

javaÃæÊÔÌâ3

23.±à³ÌʵÏÖÐòÁл¯µÄStudent£¨sno,sname£©¶ÔÏóÔÚÍøÂçÉϵĴ«Êä
package com.softeem.demo;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.net.ServerSocket;
import java.net.Socket;
class Student implem ......

sql ²Ù×÷

 exec   sp_rename   't_2.lname','lastname','column' 
exec   sp_rename   ‘tabelname’,'new'
 
»ñµÃsqlÓï¾äµÄÖ´ÐÐʱ¼ä£º
SET STATISTICS TIME ON
// sql Óï¾ä£ºselect * from table
SET STATISTICS TIME OFF
 
 
´´½¨Ë÷Òý£ºCRE ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ