Filtering generic select with changeable parameters

When executing a command, parameters must be exclusively database parameters or values

the element...@newStudentID... a necessary output parameter (...Direction = ParameterDirection.Output... ). However, a more effective strategy would be to end the sproc by...SELECT SCOPE_IDENTITY() as NewStudentID; ...in place of...set @newStudentID = @@IDENTITY... . and eliminate the...@newStudentID... parameter. that portion...as NewStudentID... ...

SQL Server stored procedure output parameter and return data from select

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EF Core Select one Entity filtered by related entities

So disregard SQL and joins. You may retrieve related data in EF (Core) targeting LINQ queries by using the navigation properties. Entities in the context of the query stand in for database table records, joins, and linked table records....You utilize simple criteria for reference navigation characteristics, such as:...Where(entity => entity.Referen...

Value cannot be null Parameter name: source at System.Linq.Enumerable.Select[TSource,TResult]

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Entity Framework Core: Global query filter not filtering correctly after data change

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Select tag helper selected value not rendered in view

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Why Linq "where" expression after Select gets evaluated locally when created through a generic method?

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EF Core 3.1 - how to do filtering based on parameters?

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The filter expression cannot be specified for entity type. A filter may only be applied to the root entity type in a hierarchy

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Cannot implicitly convert type 'System.Collections.Generic.List<<anonymous type: string Access>>' to 'System.Collections.Generic.IEnumerable<string>'

Simply alter this:...Select(x => new { x.Access }) ...With This:...Select(x => x.Access) ...For this reason,...new... ensures that your query returns an...IEnumerable...Anonymous types..., but you need an...IEnumerable... of ...Strings... .