Fixing error when the user try to delete all results of a table

[daniellima32]

There is an error when the user try to delete all values of an table. This correction fix this error.

[qicosmos]

Good, thank you.

Please use constexpr, constexpr auto count_of_conditions = sizeof...(Args); further more, you'd better test the code with vs2017, i'm not sure if it's still have problems.