【Android】数据库 sqLite

public class MyDateBase1 extends SQLiteOpenHelper {

	
	public MyDateBase1(Context context) {
		super(context, "myDataBase", null, 1);

	}

	@Override
	public void onCreate(SQLiteDatabase db) {
		
				
	}

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

	}

}

在其他类中 直接new这个类，并且getWritableDatabase和getreadableDatabase之后就可以了

DBHelper d = new DBHelper(this);
SQLiteDatabase dbwrite,dbread;

dbwrite = dbhelp.getWritableDatabase();
dbread = dbhelp.getreadableDatabase();

可以在oncreate方法中执行数据库的初始化

增删改查的sql

insert into 表(name,age)values("","");

delete from 表 where age=20;

update 表 set name ="XX" where age = 20;

Cursor c = dbRead.rawQuery("select * from student",null);
while(c.moveToNext()){
	String name = c .getSrting(c.getColumuIndex("name"))
	int age = c.getInt(c.getColumuIndex("age"));
	}

db.execSQL("");

【Android】数据库 sqLite

原文：http://blog.csdn.net/fried_potatoes/article/details/44563911