Получить сумму строк указанного поля по условию

Ну, собственно в заголовке все и сказано.

6 Comments

  1. The next time I read a blog, I hope that it does not disappoint me as much as this particular one. After all, I know it was my choice to read through, however I genuinely believed you would have something helpful to say. All I hear is a bunch of crying about something that you can fix if you were not too busy seeking attention.

  2. Hi there! This article couldn’t be written much better! Looking through this article reminds me of my previous roommate! He constantly kept preaching about this. I most certainly will send this article to him. Pretty sure he’ll have a great read. Many thanks for sharing!

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