No interpretation of what you are asking occurs to me, unless you are talking about the DDL Create or Modify command operating on a database. Can you give an example of SQL or some script that allocates space from Source Database to Target Database?
In Teradata Admin, if I select a database and click move space from source to target database, what is the equivalent query statement I can execute in SQL Assistant?
Look at the generated SQL history. TD Admin issues a sequence of requests:
CREATE DATABASE someName FROM source AS PERM=bytesToMove;
GIVE someName TO target;
DROP DATABASE someName;