Table: player_moves_0000
Columns: nat
name
moving_from
type
transfer_window
ends
transfer_fee

Question: What is the transfer fee for Helguera?
SQL: SELECT "transfer_fee" FROM player_moves_0000 WHERE "name" = 'helguera'

Question: What was the transfer fee when the moving from was celta de Vigo?
SQL: SELECT "transfer_fee" FROM player_moves_0000 WHERE "moving_from" = 'celta de vigo'

Question: What was the transfer window with a moving from of fenerbahçe?
SQL: SELECT "transfer_window" FROM player_moves_0000 WHERE "moving_from" = 'fenerbahçe'

Question: What nation had a moving from of espanyol?
SQL: SELECT "nat" FROM player_moves_0000 WHERE "moving_from" = 'espanyol'

Question: What was the transfer fee for the player with an ends of 2007?
SQL: SELECT "transfer_fee" FROM player_moves_0000 WHERE "ends" = 2007