Question: what is the apps when the name is Smith?
SQL: SELECT MIN("Apps") FROM "2-17596418-6" WHERE "Name" = 'Smith';

Question: how many times is the transfer fee £2,500,000?
SQL: SELECT COUNT("Goals") FROM "2-17596418-6" WHERE "Transfer fee" = '£2,500,000';

Question: how many times is the transfer window, summer and the name sinclair?
SQL: SELECT COUNT("Apps") FROM "2-17596418-6" WHERE "Transfer window" = 'summer' AND "Name" = 'sinclair';

Question: what is the goals when the country is wal, the name is smith and apps is more than 0?
SQL: SELECT SUM("Goals") FROM "2-17596418-6" WHERE "Country" = 'wal' AND "Name" = 'smith' AND "Apps" > 0.0;