Question

我在Java（Jdbc：Odbc）中建立数据库连接时遇到SQL错误。如何解决此错误？

以下是相关代码：

import java.sql.*;
import java.lang.*;
import java.io.*;

public class db {
    public static void main(String args[]) {

        try {
            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
            Connection con=DriverManager.getConnection("jdbc:odbc:data","system","password");
            System.out.println("\n connection established");
            Statement st=con.createStatement();
            ResultSet rs=st.executeQuery("select * from stud");
            System.out.println("details of empdata\n");
            while(rs.next())     {
                 System.out.println(rs.getInt(1)+"\t"+rs.getString(2)+"\t"+rs.getString(3));
            }
        } catch(Exception e)     {
            System.out.println("sql error");
        }
    }
}

Answer 1

/ *执行查询需要字符串作为参数，如果你没有找到类找不到异常而不是首先处理它，你在查询时没有使用半冒号这应该通过双Q = =＃34;从螺柱中选择*;＆＃34; * /

    try {
        Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        Connection con=DriverManager.getConnection("jdbc:odbc:data","system","password");
        System.out.println("\n connection established");
        Statement st=con.createStatement();
        ResultSet rs=st.executeQuery("select * from stud;");//----HERE--*/
        System.out.println("details of empdata\n");
        while(rs.next())     {
             System.out.println(rs.getInt(1)+"\t"+rs.getString(2)+"\t"+rs.getString(3));
        }
    } catch(Exception e)     {
        System.out.println("sql error");
    }
}

}

数据库连接中的SQL错误

1 个答案: