Introduction to SQL
The wildcard in a WHERE clause is useful when?

An exact match is not possible in a CREATE statement.
An exact match is not possible in a SELECT statement.
An exact match is necessary in a SELECT statement.
An exact match is necessary in a CREATE statement.

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP

Introduction to SQL
Which of the following query is correct for using comparison operators in SQL?

SELECT name, course_name FROM student WHERE age>50 and WHERE age<80;
None of these
SELECT name, course_name FROM student WHERE age>50 and <80;
SELECT name, course_name FROM student WHERE age>50 and age <80;

ANSWER DOWNLOAD EXAMIANS APP