Yes I tried but no success 

ALTER TABLE SD.GROUP_TYPE_NODES GROUP_TYPE_10082019140110000
;

SQL Error [25] [37000]: [SQLCODE: <-25>:<Input encountered after end of query>]
[Location: <Prepare>]
[%msg: < Input (IDENTIFIER) encountered after end of query^GROUP_TYPE_10082019140110000>]
 

not sure of how to use Studio.