Table: atari800
Columns: name
current_version
system
platform
license

Question: What is the System with the Current version 3.0.0?
SQL: SELECT "system" FROM atari800 WHERE "current_version" = '3.0.0'

Question: What is the Name when the License is gpl and the Current Version is 1.72?
SQL: SELECT "name" FROM atari800 WHERE "license" = 'gpl' AND "current_version" = '1.72'

Question: What is the System when the Licence is gpl and the Current Version is 1.72?
SQL: SELECT "system" FROM atari800 WHERE "license" = 'gpl' AND "current_version" = '1.72'

Question: What is the System with a freeware License?
SQL: SELECT "system" FROM atari800 WHERE "license" = 'freeware'

Question: What is the License when the Platform is windows and the Name is Altirra?
SQL: SELECT "license" FROM atari800 WHERE "platform" = 'windows' AND "name" = 'altirra'

Question: What Platform has a Current Version 0.6.2?
SQL: SELECT "platform" FROM atari800 WHERE "current_version" = '0.6.2'