OrmLite-如何获得已删除行的计数？

Question

将ORMlite与SQLite结合使用的Android应用程序。这是我从表中删除一些行的方法：

private static boolean apply(Dao<NotificationInvoice, Integer> invoiceDao) {
    boolean isSuccess = false;
    try {
        String sql ="DELETE from notification where ownerkey not in ("123","456")";
        GenericRawResults<String[]> rawResults = invoiceDao.queryRaw(sql);
        isSuccess = true;
    } catch (SQLException e) {
        if (BuildConfig.DEBUG)
            Log.e(TAG, e.getMessage(), e);
    }
    return isSuccess;
}

有效。从表中成功删除N条记录。真好 问题是：如何在不执行第二次查询的情况下获取已删除的行数？

Answer 1

您可以使用 OrmLite 中的DeleteBuilder。

DeleteBuilder deleteBuilder = invoiceDao.deleteBuilder();
deleteBuilder.where().notIn("ownerkey", new String[]{"123", "457"});
deleteCount = deleteBuilder.delete()