Introduction to SQL To establish a range of values, < and > can be used. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What operator tests column for the absence of data? NOT operator EXISTS operator IS NULL operator None of these NOT operator EXISTS operator IS NULL operator None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following query finds the names of the sailors who have reserved at least one boat? SELECT DISTINCT s.sname FROM sailors, reserves WHERE s.sid = r.sid; SELECT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid; None of These SELECT DISTINCT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid; SELECT DISTINCT s.sname FROM sailors, reserves WHERE s.sid = r.sid; SELECT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid; None of These SELECT DISTINCT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Select the right statement to insert values to the student table. INSERT VALUES ( INSERT VALUES INTO student ( INSERT student VALUES ( INSERT INTO student VALUES ( INSERT VALUES ( INSERT VALUES INTO student ( INSERT student VALUES ( INSERT INTO student VALUES ( ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which SQL keyword is used to retrieve only unique values? DISTINCT DISTINCTIVE UNIQUE DIFFERENT DISTINCT DISTINCTIVE UNIQUE DIFFERENT ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following do you need to consider when you make a table in SQL? Primary keys All of these Default values Data types Primary keys All of these Default values Data types ANSWER DOWNLOAD EXAMIANS APP
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