Introduction to SQL Which of the following is valid SQL for an Index? CREATE INDEX ID; REMOVE INDEX ID; CHANGE INDEX ID; ADD INDEX ID; CREATE INDEX ID; REMOVE INDEX ID; CHANGE INDEX ID; ADD INDEX ID; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following must be enclosed in double quotes? All of these Column Alias Dates Strings All of these Column Alias Dates Strings ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following SQL commands is used to retrieve data? INSERT SELECT JOIN DELETE INSERT SELECT JOIN DELETE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL SQL can be used to: query database data only. create database structures only. modify database data only. All of these query database data only. create database structures only. modify database data only. All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SELECT statement SELECT 'Hi' FROM DUAL WHERE NULL = NULL; Outputs Nothing FLASE Hi TRUE Nothing FLASE Hi TRUE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Find all the tuples having temperature greater than 'Paris'. SELECT * FROM weather WHERE temperature > 'Paris' temperature SELECT * FROM weather WHERE temperature > (SELECT * FROM weather WHERE city = 'Paris') SELECT * FROM weather WHERE temperature > (SELECT temperature FROM weather WHERE city = 'Paris') SELECT * FROM weather WHERE temperature > (SELECT city FROM weather WHERE city = 'Paris') SELECT * FROM weather WHERE temperature > 'Paris' temperature SELECT * FROM weather WHERE temperature > (SELECT * FROM weather WHERE city = 'Paris') SELECT * FROM weather WHERE temperature > (SELECT temperature FROM weather WHERE city = 'Paris') SELECT * FROM weather WHERE temperature > (SELECT city FROM weather WHERE city = 'Paris') ANSWER DOWNLOAD EXAMIANS APP
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