sp_droptype (Transact-SQL)
Deletes an alias data type from systypes.
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Transact-SQL Syntax Conventions
Syntax
sp_droptype [ @typename = ] 'type'
Arguments
- [ @typename=] 'type'
Is the name of an alias data type that you own. type is sysname, with no default.
Return Code Type
0 (success) or 1 (failure)
Result Sets
None
Remarks
The type alias data type cannot be dropped if tables or other database objects reference it.
Note
An alias data type cannot be dropped if the alias data type is used within a table definition or if a rule or default is bound to it.
Permissions
Requires membership in the db_owner fixed database role or the db_ddladmin fixed database role.
Examples
The following example drops the alias data type birthday.
Note
This alias data type must already exist or this example returns an error message.
USE master;
GO
EXEC sp_droptype 'birthday';
GO