CREATE TABLE table_17672500_19 (stage__winner_ VARCHAR2, team_classification VARCHAR2)

Who are all the stage winners where the team classification is Caisse D'epargne?
SELECT stage__winner_ FROM table_17672500_19 WHERE team_classification = "Caisse d'Epargne"
SELECT "stage__winner_" FROM "table_17672500_19" WHERE "Caisse d'Epargne" = "team_classification"