Introduction to SQL Which command undo all the updates performed by the SQL in the transaction? TRUNCATE ROLLBACK COMMIT DELETE TRUNCATE ROLLBACK COMMIT DELETE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the SQL statements is correct? SELECT Username, Password WHERE Username = 'user1' SELECT Username AND Password FROM Users SELECT Username, Password FROM Users None of these SELECT Username, Password WHERE Username = 'user1' SELECT Username AND Password FROM Users SELECT Username, Password FROM Users None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The FROM SQL clause is used to... specify search condition None of these specify what table we are selecting or deleting data FROM specify range for search condition specify search condition None of these specify what table we are selecting or deleting data FROM specify range for search condition ANSWER DOWNLOAD EXAMIANS APP
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 Which SQL keyword is used to retrieve only unique values? DISTINCTIVE DISTINCT UNIQUE DIFFERENT DISTINCTIVE DISTINCT UNIQUE DIFFERENT ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Find all the cities whose humidity is 89 SELECT city FROM weather; SELECT humidity = 89 FROM weather; SELECT city WHERE humidity = 89; SELECT city FROM weather WHERE humidity = 89; SELECT city FROM weather; SELECT humidity = 89 FROM weather; SELECT city WHERE humidity = 89; SELECT city FROM weather WHERE humidity = 89; ANSWER DOWNLOAD EXAMIANS APP
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