[Database] DML(Data Manupulation Language) 1

1. 비교문(Select)

- 같다: = cf) ==

- 같지 않다: <> cf) !=

- > / >= / <= / <

 

2. DML

- select

- select distinct

- where

- and, or, not

- order by

- insert into

- null values

- update

- delete

- select top

- min and max

- count, avg, sum

- in

- between