SSU SQL 연습문제 풀이 1 find professor names and course IDs they taught 방법1 : inner join 사용 방법2 : natural join 사용 find the titles of courses offered by the ‘CS’ department, and names of professors who teach the courses 방법1 : inner join 활용 방법2 :... CSsqldbSSUCS SQL part1) select 튜플 중복 허용 ex) Select distinct deptName from professor; // Find the names of all departments with professors, and remove duplicates ex) Select all deptName from professor; ex) select name from professor where deptName='CS'... CSdbSSUCS 3. SQL part1 - intro, DDL SQL, DML SQL data definition language 스키마 생성, 스키마 삭제, 스키마 변경 등 data manipulation language 인스턴스의 생성, 조회, 삭제, 변경 등 data control language procedural language non-procedural(declarative) language 방법 및 절차에 대한 언급 없이 원하는 데이터(what to do)만을 명... CSdbSSUCS
SQL 연습문제 풀이 1 find professor names and course IDs they taught 방법1 : inner join 사용 방법2 : natural join 사용 find the titles of courses offered by the ‘CS’ department, and names of professors who teach the courses 방법1 : inner join 활용 방법2 :... CSsqldbSSUCS SQL part1) select 튜플 중복 허용 ex) Select distinct deptName from professor; // Find the names of all departments with professors, and remove duplicates ex) Select all deptName from professor; ex) select name from professor where deptName='CS'... CSdbSSUCS 3. SQL part1 - intro, DDL SQL, DML SQL data definition language 스키마 생성, 스키마 삭제, 스키마 변경 등 data manipulation language 인스턴스의 생성, 조회, 삭제, 변경 등 data control language procedural language non-procedural(declarative) language 방법 및 절차에 대한 언급 없이 원하는 데이터(what to do)만을 명... CSdbSSUCS