SQLのWHERE句内のオペランドをシングルクォーテーションで括っていないため、int型と評価される。 ※左オペランドはテーブルのDATE型のカラム ...

I have a SQL server that only recently started failing with timeout exceptions. It is an older box and we are using it for more and more things. Before I write it off as a hardware/perf issue, I ...

I have been using EF Core temporal tables since EF Core 7.0.0. I'm also using optimistic concurrency and this was implemented before temporal tables. They have been working together without a problem ...

M.Sc. C.S. University of Belgrade, Serbia; MCSA – Microsoft Certified Solutions Associate (C#, ASP.NET MVC); CodeProject MVP (x2 years); C#-Corner MVP (x3 years ...

The website isn't using parameterized queries, which is a fairly serious security flaw. Most likely, your mother is putting a single quote in a field where the programmer didn't expect it, and because ...

Based on the Exception type, the GetMessage() method can return specific messages based on the exception itself. One of the more common uses is to override the ...