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Code Block
languagesql
themeEmacs
-- 그룹을 추가한다.
INSERT INTO test.group_info(
   group_id
  ,name
) VALUES (
   NULL -- group_id - IN int(11)
  ,''  -- name - IN varchar(255)
)


-- 사용자를 추가할시 그룹을 지정하거나, 나중에 지정한다.
INSERT INTO test.user(
   user_id
  ,email
  ,name
  ,group_id
) VALUES (
   NULL -- user_id - IN int(11)
  ,''  -- email - IN varchar(255)
  ,''  -- name - IN varchar(255)
  ,0   -- group_id - IN int(11)
)


-- 여러명을 등록할시 위 과정이 반복됩니다.




--학생인 사용자만 조회시..Join을 통해 해결
select * from user left outter join group_info gi on gi.name='학생'

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