Introduction to SQL The qualifier DISTINCT must be used in an SQL statement when we want to eliminate duplicate rows. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following command makes the updates performed by the transaction permanent in the database? ROLLBACK COMMIT TRUNCATE DELETE ROLLBACK COMMIT TRUNCATE DELETE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Find the name of all cities with their temperature, humidity and countries. 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 weather.city, temperature, humidity, country FROM weather, location; 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 FROM weather SELECT country FROM location WHERE weather.city = location.city; SELECT weather.city, temperature, humidity, country FROM weather, location; SELECT city, temperature, humidity, country FROM location; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following is a SQL aggregate function? AVG LEN JOIN LEFT AVG LEN JOIN LEFT ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL statement that queries or reads data from a table is ________ . SELECT READ None of these QUERY SELECT READ None of these QUERY ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The result of a SQL SELECT statement is a ________ . file table form report file table form report ANSWER DOWNLOAD EXAMIANS APP
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