c1 = 1 + 2
c1 = 1 - 2
c1 = 1 * 2
c1 = 1 / 2
c1 = 1 % 2
c1 = 1 div 2
c1 = (1 <= 2)
c1 = (1 < 2)
c1 = 2
c1 = (1 >= 2)
c1 = (1 > 2)
c1 = (1 != 2)
c1 = (1 and 0)
c1 = (1 or 0)
c1 in (select * from t1)
c1 = last_insert_id(c1 + 1)
c1 = locate("bar", "foobarbar")
c1 = locate("bar", "foobarbar", 4)
c1 = round(2.55)
c1 = round(2.55, 2)
-(1.5)
-(1)
c1 like '//' escape '/'
c1 like '//' escape 2
c1 like '//' escape '//'
c1 like '_'
c1 like 2
c1 in (select t1 from table1)
1=(select c1 from table1 where c2>20)
(t1,t2)=(select c1, c2 from table1)
exists (select c1 from t1)
not (not (not exists (select c1 from t1)))
(select c1 from t1 where (c1, c2) in ((1, 2), (2, 3))) in (select c1 from t1)
case name  when 'sam' then 'yong'  when 'lee' then 'handsome'  else 'good' end
case when 1>0 then 'true' else 'false' end
now()
utc_timestamp()
floor(3.14)
count(*)
max(c1)
c1 in (select t1 from table1)
1=(select c1 from table1 where c2>20)
(t1,t2)=(select c1, c2 from table1)
10
@@auto_increment_increment
@a
c1
10+10
not 10
c1+c2=c3+c4
c1=3
c1>1
c1 > c2
c1 in (1,2,3,4)
c1 between 2 and 10
10+10+c1
c1 = 1 + 2
c1 between 10+10 and 30
1+c1 > ? and 'abc' || c2 = 'def'