Introduction to SQL
Which of the following query finds the names of the sailors who have reserved at least one boat?

None of These
SELECT DISTINCT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid;
SELECT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid;
SELECT DISTINCT s.sname FROM sailors, reserves WHERE s.sid = r.sid;

ANSWER DOWNLOAD EXAMIANS APP

Introduction to SQL
NULL is

the same as blank for character
the same as 0 for integer and blank for character
the same as 0 for integer
not a value

ANSWER DOWNLOAD EXAMIANS APP