The UNLOAD SINGLE TABLE syntax is used to unload single table.
unloadSingleTable ::=
  'UNLOAD' 'SINGLE' 'TABLE' tableNames
tableNames ::=
  tableName (',' tableName)*
tableName ::=
  identifier
UNLOAD SINGLE TABLE t_single;
UNLOAD SINGLE TABLE *;
-- or
UNLOAD ALL SINGLE TABLES;
UNLOAD, SINGLE, TABLE, ALL, TABLES
