android 学习

今天完成了两个表连接数据库

package com.example.myapplication2;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.widget.Toast;

public class DatabaseHelper extends SQLiteOpenHelper {
    public static final String CREATE_LIST="create table TTList3("
            +"id integer primary key autoincrement,"
            +"姓名 text,"
            +"体温 text,"
            +"日期时间 text,"
            +"所在地 text,"
            +"状况 text)";
    private Context mContext;

    public DatabaseHelper(Context context, String name,
                            SQLiteDatabase.CursorFactory factory, int version){
        super(context,name,factory,version);
        mContext=context;
    }


    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL(CREATE_LIST);
        Toast.makeText(mContext, "创建成功", Toast.LENGTH_SHORT).show();
    }
    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

    }
}