從DB2中的表中獲取值

Question

我想從使用db2的表中獲取值並打印出結果。

這是我試圖用做代碼：

import java.sql.PreparedStatement; 
import java.sql.ResultSet; 
import java.sql.DriverManager; 
import java.sql.Connection; 
import java.sql.SQLException; 

public class connection { 
    public static void main(String[] argv) { 
     try { 
      Class.forName("COM.ibm.db2.jdbc.app.DB2Driver"); 
     } 
     catch (ClassNotFoundException e) { 
      System.out.println("Please include Classpath Where your DB2 Driver is located"); 
      e.printStackTrace(); 
      return; 
     } 
     System.out.println("DB2 driver is loaded successfully"); 
     Connection conn = null; 
     PreparedStatement pstmt = null; 
     ResultSet rset=null; 
     boolean found=false; 
     try { 
      conn = DriverManager.getConnection("jdbc:db2:sabarish","db2admin","Murugasaranam"); 
      if (conn != null) 
      { 
       System.out.println("DB2 Database Connected"); 
      } 
      else 
      { 
       System.out.println("Db2 connection Failed "); 
      } 
      pstmt=conn.prepareStatement("SELECT * FROM SYSCAT.COLUMNS WHERE TABSCHEMA= 'STD' AND TABNAME= 'inventory'"); 
      rset=pstmt.executeQuery(); 
      if(rset!=null) 
      { 

       while(rset.next()) 
       { 
        found=true; 
        System.out.println("Class Code: "+rset.getString("clcode")); 
        System.out.println("Name: "+rset.getString("name")); 
       } 
      } 
      if (found ==false) 
      { 
       System.out.println("No Information Found"); 
      } 
     } catch (SQLException e) { 
      System.out.println("DB2 Database connection Failed"); 
      e.printStackTrace(); 
      return; 
     } 
    } 

} 

，只打印出列名。而不是列名，我可以使用什麼查詢語句來獲得結果？ db2 select * from store.inventory 似乎不工作。

Answer 1

嘗試select * from STD.inventory