테이블 생성코드 Create table If Not Exists World (name varchar(255), continent varchar(255), area int, population int, gdp bigint) Truncate table World insert into World (name, continent, area, population, gdp) values ('Afghanistan', 'Asia', '652230', '25500100', '20343000000') insert into World (name, continent, area, population, gdp) values ('Albania', 'Europe', '28748', '2831741', '12960000000') ins..