The _______ operator explicitly defines a set in which a given value may or may not be included.
ALL
IN
where
NULL
SQL can be used to :
create database structure only
query database data only
modify database data only
all of these can be done by SQL
SQL is
a programming langauge
an operating system
a data sublanguage
DBMS
If condition are to be applied on the group, which of the following clause is used for that purpose?
WHERE
Group by
HAVING
_________ produces the arithmetic sum of all selected values of a given field.
sum( )
count( )
total( )
avg( )
SQL stand for
Structured Query Language
String Query Language
Statement Query Language
None of these
The ________ keyword avoids deplication of column values during intersection of rows.
Distinct
Unique
Union
Primary key