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

JDBCÁ¬½ÓsqlserverÊý¾Ý¿â´íÎó

ÓÃJDBCÁ¬½Ósqlserver2005Êý¾Ý¿â½øÐвéѯʱ£¬³öÏÖÏÂÃæµÄ´íÎóʱʲôԭÒò¡­¡­
Error occurred
Error:java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver
1. ¿ÉÄÜÊÇÇý¶¯ÀàµÄÃû×Öд´íÁË
2. Ö¸¶¨µÄÀࣨ°üº¬Õâ¸öÀàµÄjar°ü£©²»ÔÚclass-pathÉÏ¡£

ÇëÎÊÈçºÎ½â¾ö¡­¡­


ÔÚµ±Ç°ÏîÄ¿Öе¼Èë sqljdbc.jar


Java code:
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class DBCon {

private static String driver="com.microsoft.sqlserver.jdbc.SQLServerDriver";
private static String url="jdbc:sqlserver://localhost:1433;databasename=xx";
private static String user="sa";
private static String pwd="sa";

public static Connection getConnection(){
try {
Class.forName(driver);
Connection con=DriverManager.getConnection(url, user, pwd);
System.out.println("con success");
return con;
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}


Ïà¹ØÎÊ´ð£º

SwingÀïÃæµÄʼþÓëSQLserverÊý¾Ý¿âµÄÁ¬½ÓµÄÎÊÌâ

СµÜÏÖÔÚSwingÔÚÁ¬½ÓÊý¾Ý¿âÉÏÓöµ½Ò»µãÎÊÌ⣬ÇëÎÊSwingÀïÃæµÄʼþºÍSQLserverÊý¾Ý¿âµÄÁ¬½ÓÓÐʲôºÃµÄ×ÊÁÏÊéÍÆ¼öÂð£¿
Õâ¸öÓ¦µ±Ã»ÓÐÊ²Ã´ÌØ±ð,ÓëÆäËûµÄ±à³ÌÒ»Ñù.

JDBC

ÇëÎÊÔÚSwingÖмÓÔØ±³¾°Í¼Æ¬ÊÇÔõô¼ÓµÄ£¿
......

sqlserverÈ«ÎÄË÷ÒýµÄÔ­Àí

ÎÒ¿´Á˺ܶàÎÄÕ£¬Ð´µÄ̫רҵ£¬Äܲ»ÄÜÓôó°×»°½²½²£¬¾ÍÊÇÔõô¹¹½¨Ë÷ÒýµÄ£¬²éµÄʱºòÊÇÔõôÑùµÄ²½Ö裬Ϊʲô±Èlike¿ì£¬ÊDz»ÊÇÖ»ÒªÓÃcontect£¬¾ÍÒ»¶¨»áÈ¥²é£¬±ÈÈç
select * from table where contect('sdfsd',sdf) and ......

Sqlserver Óï¾äת³ÉMySqlÓï¾ä

Ҫת³ÉÒ»ÑùµÄЧ¹û£¬ÓÃpowerdesignerÔõôת£¿ÄÜתÂð£¿
create table publishers (
publisherID int identity,
publisherName varchar (30) NOT NULL,
constraint pk_publishers primary key (publisherID)
)& ......

ÈçºÎ×öSQLServer·¢²¼ºÍOracle¶©ÔĵÄÎÊÌâ

oracle·¢²¼£¬sqlserver¶©ÔÄÎÒ×ö³É¹¦ÁË
µ«ÊÇsqlserver·¢²¼oracle¶©ÔÄÎÒʼÖÕʧ°Ü
Âé·³×ö¹ýµÄÅóÓÑÖ¸½ÌÒ»ÏÂ
ûµÃÈ˹Ø×¢Ñ½

ÒýÓÃ
ûµÃÈ˹Ø×¢Ñ½

²»ÊÇûµÃÈ˹Ø×¢.
ÊÇÁ½ÖÖ²»Í¬µÄ¿â,ÄãÕâô¸ãʵÔÚÌ«ÄÑÁË ......

³õѧÕß¡£Sqlserver nullµÄÎÊÌâ

´ÓÍøÉϲ鵽µÄ×ÊÁÏ˵£¬ÈκÎÊý¾ÝÀàÐÍÓëNULLÖµ½øÐмÆË㣬½á¹û¶¼½«ÎªNULL.
select null-1
½á¹ûÊÇnull
¿ÉÊÇÏÂÃæÕâ¸ö²éѯΪʲô»á³ö´íÄØ£¿
select isnull(null-1,'test');
¾ÓÈ»±¨´í˵½«varcharתΪintʧ°Ü¡£
Ϊʲô» ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ