https://jdm.kr/blog/197#Hashtable,_HashMap,_ConcurrentHashMap https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=horajjan&logNo=220584946854
CREATE TABLE PLAYER ( PLAYER_ID CHAR(7) NOT NULL, PLAYER_NAME VARCHAR2(20) NOT NULL, TEAM_ID CHAR(3) NOT NULL, E_PLAYER_NAME VARCHAR2(40), NICKNAME VARCHAR2(30), JOIN_YYYY …
CREATE OR REPLACE FUNCTION getmaxmin( v1 NUMERIC, v2 NUMERIC, OUT min_value NUMERIC, OUT max_value NUMERIC) AS $$ BEGIN min_value := GREATEST(v1, v2); max_value := LEAST(v1, v2); END; $$ LANGUAGE PLPGSQL;
nc -v www.sity.co.kr 80 Connection to www.sity.co.kr 80 port [tcp/http] succeeded!
AED 암호화 간단 예제