Introduction to SQL Which of the following is valid SQL for an Index? CHANGE INDEX ID; ADD INDEX ID; REMOVE INDEX ID; CREATE INDEX ID; CHANGE INDEX ID; ADD INDEX ID; REMOVE INDEX ID; CREATE INDEX ID; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The command to remove rows from a table 'CUSTOMER' is: DELETE FROM CUSTOMER WHERE ... DROP FROM CUSTOMER ... UPDATE FROM CUSTOMER ... REMOVE FROM CUSTOMER ... DELETE FROM CUSTOMER WHERE ... DROP FROM CUSTOMER ... UPDATE FROM CUSTOMER ... REMOVE FROM CUSTOMER ... ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What does the following query find?(SELECT DISTINCT r.sidFROM boats b, reserves rWHERE b.bid = r.bidAND b.color = 'red')MINUS(SELECT DISTINCT r.sidFROM boats b, reserves rWHERE b.bid = r.bidAND b.color = 'green') Find the sailor Ids of atmost one sailor who have reserved red boats but not green boats None of These Find the sailor IDs of at least one sailor who have reserved red boats but not green boats Find the sailor IDs of all sailors who have reserved red boats but not green boats Find the sailor Ids of atmost one sailor who have reserved red boats but not green boats None of These Find the sailor IDs of at least one sailor who have reserved red boats but not green boats Find the sailor IDs of all sailors who have reserved red boats but not green boats ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Scalar aggregate are multiple values returned from an SQL query that includes an aggregate function. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL A subquery in an SQL SELECT statement: can only be used with two tables. can always be duplicated by a join. has a distinct form that cannot be duplicated by a join. cannot have its results sorted using ORDER BY. can only be used with two tables. can always be duplicated by a join. has a distinct form that cannot be duplicated by a join. cannot have its results sorted using ORDER BY. ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL In SQL, which command(s) is(are) used to change a table's storage characteristics? MODIFY TABLE All of these ALTER TABLE CHANGE TABLE MODIFY TABLE All of these ALTER TABLE CHANGE TABLE ANSWER DOWNLOAD EXAMIANS APP
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