sqlite 个人写增删改查实例

//创建数据库的代码

// DbConn conn = new DbConn(MainActivity.this, "hellodb", null, 1);
// conn.createTable("worldtb");

package com.oschina.osmf;

import android.content.Context;

import android.database.sqlite.SQLiteDatabase;

import android.database.sqlite.SQLiteDatabase.CursorFactory;

import android.database.sqlite.SQLiteOpenHelper;

import android.util.Log;

public class DbConn extends SQLiteOpenHelper{

public DbConn(Context context, String name, CursorFactory factory,
int version) {
super(context, name, factory, version);
}

@Override
public void onCreate(SQLiteDatabase db) {

}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

}

public void createTable(String tableName)
{
SQLiteDatabase db = this.getWritableDatabase();
String sql = "create table if not exists "+tableName+"(id integer primary key,name varchar)";
db.execSQL(sql);
Log.i("test", "创建表成功");
}

public void selectTable(String tableName)
{

}

}