-562 THE SPECIFIED PRIVILEGES CANNOT BE GRANTED TO PUBLIC.

Explanation
The GRANT statement attempted to grant one of the
following privileges to the reserved authorization ID PUBLIC (public): 
System DBADM
DATAACCESS
ACCESSCTRL 
CREATE_SECURE_OBJECT

These privileges cannot be granted to PUBLIC (public). 

System action
The statement cannot be processed.

Programmer response
Change the statement to specify a privilege
that can be granted to PUBLIC, or specify a grantee other than PUBLIC.

SQLSTATE
 42508