Introduction to SQL The SELECT statement SELECT 'Hi' FROM DUAL WHERE NULL = NULL; Outputs Hi Nothing TRUE FLASE Hi Nothing TRUE FLASE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Select the right statement to insert values to the student table. INSERT student VALUES ( INSERT VALUES INTO student ( INSERT INTO student VALUES ( INSERT VALUES ( INSERT student VALUES ( INSERT VALUES INTO student ( INSERT INTO student VALUES ( INSERT VALUES ( ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Most companies keep at least two versions of any database they are using. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL SQL is a programming language. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL A SELECT statement within another SELECT statement and enclosed in square brackets ([...]) is called a subquery. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What operator tests column for the absence of data? None of these NOT operator EXISTS operator IS NULL operator None of these NOT operator EXISTS operator IS NULL operator ANSWER DOWNLOAD EXAMIANS APP