Question: What is the System with the Current version 3.0.0?
SQL: SELECT "System" FROM "2-11561548-3" 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 "2-11561548-3" 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 "2-11561548-3" WHERE "License" = 'GPL' AND "Current version" = '1.72';

Question: What is the System with a Freeware License?
SQL: SELECT "System" FROM "2-11561548-3" WHERE "License" = 'Freeware';

Question: What is the License when the Platform is Windows and the Name is Altirra?
SQL: SELECT "License" FROM "2-11561548-3" WHERE "Platform" = 'Windows' AND "Name" = 'Altirra';

Question: What Platform has a Current Version 0.6.2?
SQL: SELECT "Platform" FROM "2-11561548-3" WHERE "Current version" = '0.6.2';