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import java.sql.*;
import java.io.*;
import java.util.*;


public class SQLDemo{

   public static void main(String args[]) throws Exception{
       Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
       Connection conn = DriverManager.getConnection("jdbc:microsoft:sqlserver://SKY:1433;user=sa;Password=");
       Statement st=conn.createStatement();
       String s="select * from c_card";
       ResultSet rs=st.executeQuery(s);
       while (rs.next())
       {
         System.out.println(rs.getString(1)+"<br>");
         System.out.println(rs.getString(2)+"<br>");
       }
   }
}
 
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Exception in thread "main" java.lang.ClassNotFoundException: com.microsoft.j
sqlserver.SQLServerDriver
        at java.net.URLClassLoader$1.run(URLClassLoader.java:199)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:141)
        at SQLDemo.main(SQLDemo.java:9)
Press any key to continue...

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