Question 1

How do I use FSharp.Data.SqlClient with stored procedures?

Accepted Answer

Use the SqlProgrammabilityProvider to expose stored procedures as F# types. For example, define a type for your database and call stored procedures directly with type-safe parameters, as shown in the README with AdventureWorks.uspGetWhereUsedProductID.

Question 2

FSharp.Data.SqlClient vs Dapper for F# – which should I choose?

Accepted Answer

FSharp.Data.SqlClient offers compile-time validation and type safety, ideal for reducing runtime errors. Dapper is more flexible and supports multiple databases but lacks built-in compile-time checks in F#. Choose based on need for safety vs. flexibility.

Question 3

Can I use parameterized queries to prevent SQL injection?

Accepted Answer

Yes, the SqlCommandProvider automatically handles parameterized queries. Define parameters with @ symbols in SQL, and they become type-safe F# parameters, ensuring security without manual binding.

Question 4

How to handle null values from SQL Server in F# code?

Accepted Answer

The library maps SQL nulls to F# option types. Use pattern matching on option values, as demonstrated in SqlProgrammabilityProvider examples, to safely handle missing data.

Question 5

Is FSharp.Data.SqlClient compatible with .NET Core and newer .NET versions?

Accepted Answer

Yes, it supports .NET Standard and works with .NET Core, .NET 5+, as indicated by its cross-platform build status on Linux and NuGet availability.

Question 6

How to define SQL in external files for better maintenance?

Accepted Answer

Use the SqlFileProvider to reference .sql files. Specify the file path, and the SQL text is embedded at compile-time, maintaining type safety while separating concerns.

FSharp.Data.SqlClient

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