Shulou(Shulou.com)06/01 Report--

= =(not equal to)!= (not equal to) :=(assignment)

between... and (including boundaries in an interval)

Select salary from employees where salary is between2000 and 5000

in()

Select last_name from employees where department_id in(80,90,70,50)

like

--select last_name from employees where last_name like'%a%'--select last_name from employees where last_name like'_a%' where last_name like'_a%'

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