Database, SQL, MySQL
Table
SELCT, INSERT, UPDATE, DELETE
ORDER BY
Comparison Operators, Logical Operators
UNION
INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN, SELF JOIN
CONCAT, ALIAS, DISTINCT, LIMIT
SQL File
Python with MySQL, Python with CSV
PRIMARY KEY, FOREIGN KEY 생성 및 삭제
COUNT, SUM, AVG, MIN, MAX, FIRST, LAST, GROUP BY, HAVING
UCASE, LCASE, MID, LENGTH, ROUND, NOW, FORMAT
Scalar Subquery, Inline View, Nested Subquery