Introduction to SQL The SQL statement that queries or reads data from a table is ________ . SELECT QUERY READ None of these SELECT QUERY READ None of these 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 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; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Each index consumes extra storage space and also requires overhead maintenance time whenever indexed data change value. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following is a SQL aggregate function? AVG JOIN LEFT LEN AVG JOIN LEFT LEN ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The command to eliminate a table from a database is: DELETE TABLE CUSTOMER; DROP TABLE CUSTOMER; REMOVE TABLE CUSTOMER; UPDATE TABLE CUSTOMER; DELETE TABLE CUSTOMER; DROP TABLE CUSTOMER; REMOVE TABLE CUSTOMER; UPDATE TABLE CUSTOMER; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following is a valid SQL type? NUMERIC All of these CHARACTER FLOAT NUMERIC All of these CHARACTER FLOAT ANSWER DOWNLOAD EXAMIANS APP
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