초성 검색 함수
BEGIN declare returnStr varchar(100); declare cnt int; declare i int; declare j int; declare tmpStr varchar(10); if str is null then return ''; end if; set cnt = CHAR_LENGTH(str); set i = 1; set j = 1; while i = '가' AND tmpStr = '나' AND tmpStr = '다' AND tmpStr < '라' ) then 'ㄷ' when tmpSt..
