EntityFramework.Docs | Entity Framework Core and Entity Framework | Object-Relational Mapping library
kandi X-RAY | EntityFramework.Docs Summary
kandi X-RAY | EntityFramework.Docs Summary
Documentation for Entity Framework Core and Entity Framework 6
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QUESTION
Looking for a method to get value of first row in first column from arbitary sql query in ASP.NET MVC Core application using EF Core.
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...ANSWER
Answered 2021-Jan-17 at 17:28command.Parameters.Add(p ?? DbNull.Value);
Is p
an NpgsqlParameter, or some value that you want to send?? You cannot simply add values (or null) to command.Parameters.Add
- you need to either wrap these with NpgsqlParameter or use command.Parameters.AddWithValue()
instead. Note that the NpgsqlParameter also needs to have its ParameterName
set correctly, correponding to the placeholders in your raw SQL (e.g. @param1
).
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