CREATE TABLE table_17025 ("Ships name" CLOB, "Date entered service" CLOB, "Date withdrawn" CLOB, "Tonnage" FLOAT, "Type of Ship" CLOB)

what's the date where ships name is zeeland entered service
SELECT "Date entered service" FROM table_17025 WHERE "Ships name" = 'Zeeland'
SELECT "Date entered service" FROM "table_17025" WHERE "Ships name" = 'Zeeland'