从 DB2 中的 table 获取值

Question

我想使用 db2 从 table 中获取值并打印出结果。

这是我尝试使用的代码：

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;
        }
    }

}

它只打印列名。除了列名，我可以使用什么查询语句来获取结果？ db2 select * from store.inventory 好像不太好用。

Answer 1

尝试select * from STD.inventory

从 DB2 中的 table 获取值

Getting values from table in DB2

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db2-400