sp_freedll

Unloads a dynamic link library (DLL) that was previously loaded into XP Server memory to support the execution of an extended stored procedure (ESP).

Syntax

sp_freedll dll_name

dll_name – is the file name of the DLL being unloaded from XP Server memory.

Example 1 – Unloads the sqlsrvdll.dll DLL:
```
sp_freedll "sqlsrvdll.dll"
```

There are additional considerations when using sp_freedll:

You cannot execute from within a transaction.
sp_freedll cannot free the DLL of a system ESP.
An alternative to unloading a DLL explicitly, using sp_freedll, is to specify that DLLs always be unloaded after the ESP request that invoked them terminates. To do this, set the esp unload dll configuration parameter to 1 or start xpserver with the -u option.
You cannot use to update an ESP function in a DLL without shutting down XP Server or the SAP ASE server.
If you use sp_freedll to unload a DLL that is in use, sp_freedll succeeds, causing the ESP currently using the DLL to fail.

The permission checks for sp_freedll differ based on your granular permissions settings.

Setting	Description
Enabled	With granular permissions enabled, you must be a user with`manage any ESP` privilege.
Disabled	With granular permissions disabled, you must be a user with sa_role.

Values in event and extrainfo columns from the sysaudits table are:

Information	Values
Event	38
Audit option	exec_procedure
Command or access audited	Execution of a procedure
Information in `extrainfo`	Roles – Current active roles Keywords or options – NULL Previous value – NULL Current value – NULL Other information – All input parameters Proxy information – Original login name, if set proxy in effect