오류 피드백 학습 모음 7

Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''G' at line 1
=>문법 오류.따옴표 하나 빠뜨림.

Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'film group by rating' at line 1
=>역시 문법의 오류였다.

Error Code: 1049. Unknown database 'testdb'
=>테이블을 만들지도 않은채 지시를 했다.

Error Code: 1046. No database selected Select the default DB to be used by double-clicking its name in the SCHEMAS list in the sidebar.
=>어떤 DB를 사용할지 제대로 권한을 주지 않아서 생겼다.