Introduction to SQL SQL provides five built-in functions: COUNT, SUM, AVG, MAX, MIN. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL keyword GROUP BY instructs the DBMS to group together those rows that have the same value in a column. False True False True 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. UNIQUE ONLY SINGLE DISTINCT UNIQUE ONLY SINGLE DISTINCT ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following command makes the updates performed by the transaction permanent in the database? COMMIT DELETE TRUNCATE ROLLBACK COMMIT DELETE TRUNCATE ROLLBACK ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following do you need to consider when you make a table in SQL? Default values Data types All of these Primary keys Default values Data types All of these Primary keys 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 IN (10000, 25000); None of these SELECT name FROM staffinfo WHERE salary BETWEEN 10000 AND 25000; Both A and B SELECT name FROM staffinfo WHERE salary IN (10000, 25000); None of these SELECT name FROM staffinfo WHERE salary BETWEEN 10000 AND 25000; Both A and B ANSWER DOWNLOAD EXAMIANS APP
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