SELECT SCHEMA_NAME(schema_id) AS schema_name
,o.name AS object_name
,o.type_desc
,p.parameter_id
,p.name AS parameter_name
,TYPE_NAME(p.user_type_id) AS parameter_type
,p.max_length
,p.precision
,p.scale
,p.is_output
FROM sys.objects AS o
INNER JOIN sys.parameters AS p ON o.object_id = p.object_id
WHERE o.object_id = OBJECT_ID('<schema_name.object_name>')
ORDER BY schema_name, o.object_name, p.parameter_id;
