sp_droptype

Syntax

sp_droptype typename

Example 1 – Drops the user-defined datatype named birthday:
```
sp_droptype birthday
```

Executing sp_droptype deletes a user-defined datatype from systypes.

You cannot drop a user-defined datatype if it is referenced by tables or another database object.

See also User-Defined Datatypes in Reference Manual: Building Blocks.

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

Setting	Description
Enabled	With granular permissions enabled, you must be the datatype owner or a user with `manage database` privilege.
Disabled	With granular permissions disabled, you must be datatype owner or database owner.

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