CREATE TABLE table_name_88 (release_year_of_first_charted_record INT, artist VARCHAR)

What was the earliest release-year of the first charted record of Abba?
SELECT MIN(release_year_of_first_charted_record) FROM table_name_88 WHERE artist = "abba"
SELECT MIN("release_year_of_first_charted_record") FROM "table_name_88" WHERE "abba" = "artist"