Introduction to SQL The qualifier DISTINCT must be used in an SQL statement when we want to eliminate duplicate rows. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL To sort the results of a query use: GROUP BY. SORT BY. None of these ORDER BY. GROUP BY. SORT BY. None of these ORDER BY. ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the SQL statements is correct? SELECT Username, Password FROM Users SELECT Username AND Password FROM Users None of these SELECT Username, Password WHERE Username = 'user1' SELECT Username, Password FROM Users SELECT Username AND Password FROM Users None of these SELECT Username, Password WHERE Username = 'user1' ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which operator performs pattern matching? BETWEEN operator EXISTS operator None of these LIKE operator BETWEEN operator EXISTS operator None of these LIKE operator ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The rows of the result relation produced by a SELECT statement can be sorted, but only by one column. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Find the name of all cities with their temperature, humidity and countries. SELECT city, temperature, humidity, country FROM location; SELECT weather.city, temperature, humidity, country FROM weather, location WHERE weather.city = location.city; SELECT weather.city, temperature, humidity, country FROM weather, location; 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 WHERE weather.city = location.city; SELECT weather.city, temperature, humidity, country FROM weather, location; SELECT weather.city, temperature, humidity FROM weather SELECT country FROM location WHERE weather.city = location.city; ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS