Android开发教程之--sql语句
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![]() | 一、创建/删除表 String sql="Create table "+TABLE_NAME+"("+FIELD_ID+" integer primary key autoincrement," +FIELD_TITLE+" text );"; db.execSQL(sql); String sql=" DROP TABLE IF EXISTS "+TABLE_NAME; db.execSQL(sql); 二、查询 从表中查询数据(in) SELECT * FROM meta where media_id in (1,2,9); 三、插入 SQLiteDatabase db=this.getWritableDatabase(); ContentValues cv=new ContentValues(); cv.put(FIELD_TITLE, Title); long row=db.insert(TABLE_NAME, null, cv); 四、更新 SQLiteDatabase db=this.getWritableDatabase(); String where=FIELD_ID+"=?"; String[] whereValue={Integer.toString(id)}; ContentValues cv=new ContentValues(); cv.put(FIELD_TITLE, Title); db.update(TABLE_NAME, cv, where, whereValue); 五、删除 SQLiteDatabase db=this.getWritableDatabase(); String where=FIELD_ID+"=?"; String[] whereValue={Integer.toString(id)}; db.delete(TABLE_NAME, where, whereValue); | |
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