SQL delete

刪除資料

public class MainActivity extends AppCompatActivity {
    //    資料庫名稱
    private final static String db_name = "data.db";
    //    資料庫 版本
    private final static int version = 1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        SQLhelper helper = new SQLhelper(this, db_name, null, version);        
        SQLiteDatabase db = helper.getWritableDatabase(); 
        //Table_name,刪除的條件,刪除的值
        db.delete("user", "value = ?", new String[]{"100"});
        //關閉資料庫
        db.close();
        setContentView(R.layout.activity_main);
    }
}