Which of the following is not valid in an sql subquery? ..
.where empid in ( select ..
.where empid = (select empid..
where not exists ( select *
where empid in ( select *

the answer would be 2

since they are only saying that the couple has 20 daughters and so on but they never said that they went to the movies as well therefore the couple was the only people that went to the movies.

hope this ! : 3

which functions return a valid value without any arguments?

(-blank- and -blank- return a valid value without any arguments.)

1st -blank-

today

sqrt

count

2nd -blank-

round

now

sqrt

answer is c. complication