Introduction to SQL There is an equivalent join expression that can be substituted for all subquery expressions. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The condition in a WHERE clause can refer to only one value. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL To establish a range of values, < and > can be used. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Find the name of those cities with temperature and condition whose condition is either sunny or cloudy but temperature must be greater than 70oF. SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' OR condition = 'cloudy' OR temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' OR condition = 'cloudy' AND temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' AND condition = 'cloudy' OR temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' AND condition = 'cloudy' AND temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' OR condition = 'cloudy' OR temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' OR condition = 'cloudy' AND temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' AND condition = 'cloudy' OR temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' AND condition = 'cloudy' AND temperature > 70; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What operator tests column for the absence of data? IS NULL operator None of these EXISTS operator NOT operator IS NULL operator None of these EXISTS operator NOT operator ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which SQL statement is used to delete data FROM a database? ALTER REMOVE DELETE COLLAPSE ALTER REMOVE DELETE COLLAPSE ANSWER DOWNLOAD EXAMIANS APP
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