Introduction to SQL COUNT(field_name) tallies only those rows that contain a value; it ignores all null values. True False True False 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? None of these SELECT name FROM staffinfo WHERE salary BETWEEN 10000 AND 25000; SELECT name FROM staffinfo WHERE salary IN (10000, 25000); Both A and B None of these SELECT name FROM staffinfo WHERE salary BETWEEN 10000 AND 25000; SELECT name FROM staffinfo WHERE salary IN (10000, 25000); Both A and B ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL statement: SELECT Number1 + Number 2 AS Total FROM NUMBER_TABLE; adds two numbers from each row together and lists the results in a column named Total. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL In SQL, which command is used to change a table's storage characteristics? CHANGE TABLE ALTER TABLE None of these MODIFY TABLE CHANGE TABLE ALTER TABLE None of these MODIFY TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which operator performs pattern matching? BETWEEN operator EXISTS operator None of these LIKE operator BETWEEN operator EXISTS operator None of these LIKE operator ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL If a query involves NOT, AND, OR with no parenthesis The order of occurrence determines the order of evaluation. NOT will be evaluated first; OR will be evaluated second; AND will be evaluated last. NOT will be evaluated first; AND will be evaluated second; OR will be evaluated last. AND will be evaluated first; OR will be evaluated second; NOT will be evaluated last. The order of occurrence determines the order of evaluation. NOT will be evaluated first; OR will be evaluated second; AND will be evaluated last. NOT will be evaluated first; AND will be evaluated second; OR will be evaluated last. AND will be evaluated first; OR will be evaluated second; NOT will be evaluated last. ANSWER DOWNLOAD EXAMIANS APP
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