SqlException: "Must declare the scalar variable" in execution stored procedure

Stored Procedure returns incorrect scalar value of -1, instead of return value

I'm attempting to have a stored procedure return a scalar value. The ID of a newly created record is what I truly want to return, but I've reduced my issue to a stored method that takes an ID...int... and makes an effort to bring that back...int... . It always gives a result of 1. Thank you so much for your assistance....invoke the web API controll...

Executing a stored procedure that returns a result set and has output parameters with Entity Framework

It turns out that until all of the results are read, the output parameters aren't available. My issue was resolved by adding....ToList()... towards the tend of the...ExecuteFunction()... call. I discovered it by looking through Visual Studio's information. The pertinent paperwork is available here:...I'm not sure why I can't find this mentioned in ...

Entity Framework code-first error when using stored procedure with fields that have default value

I need to use a stored method to insert an entity. There is a column in the database table called...CreateDateTime... whose default value is...GetDate()... . ...I refuse to permit the stored process to set or update...CreateDateTime... column. ...If I dial the...dbcontext.SaveChanges()... However, after inserting a record and calling my stored me...

Store Lambda expressions as variable

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Why stored procedure out parameter is not getting read by entity framework's ExecuteSqlCommand method?

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How to call stored procedure in Entity Framework Core with input and output parameters using mysql

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How to execute stored procedure for multiple parameters using FromSqlInterpolated in EF Core 3.0?

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Querying the database with ExecuteScalar(): Must declare the table variable "@tableName"

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Using a database connection string stored in environment variable during migrations

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linq store select clause as function variable

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