S_pot

SELECT * FROM memberTBL; SELECT memberName, memberAddress FROM memberTBL; SELECT * FROM memberTBL WHERE memberName = '지운이'; CREATE TABLE "my testTBL" (id INT); -- 쿼리문장으로 테이블 생성 DROP TABLE [my testTBL]; -- 테이블삭제

ssms다운로드(한글버전)

using System; namespace _210525_011 { class Car { } class HyunDai : Car { } class Sonata : HyunDai { } class KIA : Car { } class K5 : KIA { } class Program { static void Main(string[] args) { Car aCar = new K5(); Sonata aSonata; aSonata = aCar as Sonata; Console.WriteLine("aSonata는 null값을 가지는 가? : " + (aSonata == null)); KIA aKIA = aCar as KIA; Console.WriteLine("aKIA는 null값을 가지는 가? : " + (aKIA ..