Introduction to SQL Which of the following group functions ignore NULL values? MAX All of these SUM COUNT MAX All of these SUM COUNT ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following SQL commands can be used to add data to a database table? INSERT UPDATE APPEND ADD INSERT UPDATE APPEND ADD ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following query finds colors of boats reserved by "Dustin"? SELECT DISTINCT b.color FROM boats b, reserves r, sailors s WHERE s.sname = 'Dustin' AND s.sid = r.sid SELECT DISTINCT b.color FROM boats b, sailors s WHERE s.sname = 'Dustin' AND s.sid = b.sid SELECT DISTINCT b.color FROM boats b, reserves r, sailors s WHERE s.sname = 'Dustin' AND r.bid = b.bid SELECT DISTINCT b.color FROM boats b, reserves r, sailors s WHERE s.sname = 'Dustin' AND s.sid = r.sid AND r.bid = b.bid; SELECT DISTINCT b.color FROM boats b, reserves r, sailors s WHERE s.sname = 'Dustin' AND s.sid = r.sid SELECT DISTINCT b.color FROM boats b, sailors s WHERE s.sname = 'Dustin' AND s.sid = b.sid SELECT DISTINCT b.color FROM boats b, reserves r, sailors s WHERE s.sname = 'Dustin' AND r.bid = b.bid SELECT DISTINCT b.color FROM boats b, reserves r, sailors s WHERE s.sname = 'Dustin' AND s.sid = r.sid AND r.bid = b.bid; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following command makes the updates performed by the transaction permanent in the database? TRUNCATE DELETE COMMIT ROLLBACK TRUNCATE DELETE COMMIT ROLLBACK ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The FROM SQL clause is used to... specify what table we are selecting or deleting data FROM specify search condition None of these specify range for search condition specify what table we are selecting or deleting data FROM specify search condition None of these specify range for search condition ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What is a view? A view is a database diagram. A view is a virtual table which results of executing a pre-compiled query. A view is not part of the physical database schema, while the regular tables are. None of these A view is a special stored procedure executed when certain event occurs. A view is a database diagram. A view is a virtual table which results of executing a pre-compiled query. A view is not part of the physical database schema, while the regular tables are. None of these A view is a special stored procedure executed when certain event occurs. ANSWER DOWNLOAD EXAMIANS APP
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