CREATE TABLE party_host (party_id NUMBER, host_id NUMBER, is_main_in_charge others)
CREATE TABLE party (party_id NUMBER, party_theme CLOB, location CLOB, first_year CLOB, last_year CLOB, number_of_hosts NUMBER)
CREATE TABLE host (host_id NUMBER, name CLOB, nationality CLOB, age CLOB)

What are the first year and last year of the parties whose theme is 'Spring' or 'Teqnology'?
SELECT first_year, last_year FROM party WHERE party_theme = "Spring" OR party_theme = "Teqnology"
SELECT "first_year", "last_year" FROM "party" WHERE "Spring" = "party_theme" OR "Teqnology" = "party_theme"