小编Tin*_*iny的帖子

我正在尝试从Sqlite数据库检索行的总数。我使用了以下代码，但问题是即使有多于一行满足条件，计数也始终为1。谁能指导我哪里出问题了。

public int get_report_entry_area_count(String jobId, String area,
        String sensor) {

    String countQuery = "select count(*) from report1 where JobId='"
        + jobId + "' and sensor='" + sensor + "'" + " and Area='"
            + area + "'";

    SQLiteDatabase database = this.getWritableDatabase();

    Cursor c = database.rawQuery(countQuery, null);
    c.moveToFirst();
    int total = c.getCount();
    c.close();
    return total;

}