Introduction to SQL What operator tests column for the absence of data? IS NULL operator EXISTS operator None of these NOT operator IS NULL operator EXISTS operator None of these NOT operator ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Find all the tuples having temperature greater than 'Paris'. 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 > 'Paris' temperature SELECT * FROM weather WHERE temperature > (SELECT city FROM weather WHERE city = 'Paris') 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 > 'Paris' temperature SELECT * FROM weather WHERE temperature > (SELECT city FROM weather WHERE city = 'Paris') ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which operator performs pattern matching? BETWEEN operator None of these LIKE operator EXISTS operator BETWEEN operator None of these LIKE operator EXISTS operator ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which command undo all the updates performed by the SQL in the transaction? COMMIT DELETE TRUNCATE ROLLBACK COMMIT DELETE TRUNCATE ROLLBACK ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL SUM, AVG, MIN, and MAX can only be used with numeric columns. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL In SQL, which command is used to change a table's storage characteristics? CHANGE TABLE ALTER TABLE MODIFY TABLE None of these CHANGE TABLE ALTER TABLE MODIFY TABLE None of these ANSWER DOWNLOAD EXAMIANS APP
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