Introduction to SQL A dynamic view is one whose contents materialize when referenced. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following join is also called as an 'inner-join'? Non-Equijoin Equijoin Self-Join None of these Non-Equijoin Equijoin Self-Join None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included. SINGLE UNIQUE DISTINCT ONLY SINGLE UNIQUE DISTINCT ONLY ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What operator tests column for the absence of data? EXISTS operator NOT operator None of these IS NULL operator EXISTS operator NOT operator None of these IS NULL operator ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The command to remove rows from a table 'CUSTOMER' is: DROP FROM CUSTOMER ... REMOVE FROM CUSTOMER ... DELETE FROM CUSTOMER WHERE ... UPDATE FROM CUSTOMER ... DROP FROM CUSTOMER ... REMOVE FROM CUSTOMER ... DELETE FROM CUSTOMER WHERE ... UPDATE FROM CUSTOMER ... ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following SQL query is correct for selecting the name of staffs from 'staffinfo' table where salary is 10,000 or 25,000? SELECT name FROM staffinfo WHERE salary BETWEEN 10000 AND 25000; SELECT name FROM staffinfo WHERE salary IN (10000, 25000); None of these Both A and B SELECT name FROM staffinfo WHERE salary BETWEEN 10000 AND 25000; SELECT name FROM staffinfo WHERE salary IN (10000, 25000); None of these Both A and B ANSWER DOWNLOAD EXAMIANS APP
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