Introduction to SQL Find the name of all cities with their temperature, humidity and countries. SELECT weather.city, temperature, humidity FROM weather SELECT country FROM location WHERE weather.city = location.city; SELECT city, temperature, humidity, country FROM location; SELECT weather.city, temperature, humidity, country FROM weather, location; SELECT weather.city, temperature, humidity, country FROM weather, location WHERE weather.city = location.city; SELECT weather.city, temperature, humidity FROM weather SELECT country FROM location WHERE weather.city = location.city; SELECT city, temperature, humidity, country FROM location; SELECT weather.city, temperature, humidity, country FROM weather, location; SELECT weather.city, temperature, humidity, country FROM weather, location WHERE weather.city = location.city; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL SQL can be used to: All of these modify database data only. create database structures only. query database data only. All of these modify database data only. create database structures only. query database data only. ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Count function in SQL returns the number of columns. distinct values. values. groups. columns. distinct values. values. groups. ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following query finds the total rating of the sailors who have reserved boat "103"? SELECT SUM(s.rating) FROM sailors s, reserves r WHERE s.sid = r.sid AND r.bid = 103 SELECT SUM(s.rating) FROM sailors s, reserves r AND r.bid = 103; c) SELECT COUNT(s.rating) FROM sailors s, reserves r WHERE s.sid = r.sid AND r.bid = 103 SELECT s.rating FROM sailors s, reserves r WHERE s.sid = r.sid AND r.bid = 103 SELECT SUM(s.rating) FROM sailors s, reserves r WHERE s.sid = r.sid AND r.bid = 103 SELECT SUM(s.rating) FROM sailors s, reserves r AND r.bid = 103; c) SELECT COUNT(s.rating) FROM sailors s, reserves r WHERE s.sid = r.sid AND r.bid = 103 SELECT s.rating FROM sailors s, reserves r WHERE s.sid = r.sid AND r.bid = 103 ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The result of a SQL SELECT statement is a ________ . file form report table file form report table ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL statement: SELECT Number1 + Number 2 AS Total FROM NUMBER_TABLE; adds two numbers from each row together and lists the results in a column named Total. False True False True ANSWER DOWNLOAD EXAMIANS APP