Title: Error Running CLR Stored Procedure - FileLoadException / Msg 10314
When working with CLR (Common Language Runtime) stored procedures in SQL Server, one may come across an error that can be quite frustrating and confusing – the FileLoadException with a corresponding Msg 10314. This error occurs when the CLR stored procedure cannot be loaded due to an issue with the assembly or its dependencies.
First, let's understand what a CLR stored procedure is. CLR stands for Common Language Runtime, which is a component of the .NET Framework. CLR stored procedures are written in a .NET language such as C# or VB.NET and are compiled into an assembly that is then loaded into SQL Server. These stored procedures can be used to perform complex operations that cannot be easily achieved with T-SQL.
Now, let's take a look at the FileLoadException. This is a type of exception that occurs when the CLR is unable to load the assembly or one of its dependencies. This can happen due to various reasons such as missing files, incorrect file path, or incompatible versions of the assembly. When this exception is raised, the CLR stored procedure cannot be executed, resulting in a Msg 10314.
The Msg 10314 is a generic error message that indicates that the CLR stored procedure failed to execute due to an error in the assembly. This message does not provide much information about the cause of the error, which can make it challenging to troubleshoot. So, what can be done to fix this issue?
The first step in troubleshooting the FileLoadException / Msg 10314 error is to check the assembly and its dependencies. Make sure that all the required files are present and that the file path is correct. If the assembly has been updated, ensure that all the dependent assemblies have also been updated. If there are any missing or incompatible dependencies, the CLR stored procedure will not be able to load, resulting in the error.
Next, check the version of the assembly. If the assembly has been updated, but the SQL Server is still referencing the old version, the CLR stored procedure will fail to load. To resolve this, either update the reference to the new version or recompile the CLR stored procedure with the new version.
Another common cause of the FileLoadException / Msg 10314 error is insufficient permissions. The user executing the CLR stored procedure must have appropriate permissions to access the assembly and its dependencies. If the user does not have the necessary permissions, the CLR stored procedure will fail to load, resulting in the error.
In some cases, the issue may not be with the assembly or its dependencies, but with the CLR itself. Ensure that the CLR is enabled in SQL Server by running the following command:
sp_configure 'clr enabled', 1
If the CLR is not enabled, the CLR stored procedure will fail to load, resulting in the error.
Finally, if none of the above solutions work, the last option is to reinstall the assembly and its dependencies. This will ensure that all the required files are present and in the correct locations.
In conclusion, the FileLoadException / Msg 10314 error can be frustrating, but with the right troubleshooting steps, it can be resolved. By checking the assembly and its dependencies, ensuring the correct versions are referenced, and having appropriate permissions, this error can be fixed, and the CLR stored procedure can be successfully executed.
