Introduction to SQL In SQL, which command(s) is(are) used to change a table's storage characteristics? All of these MODIFY TABLE ALTER TABLE CHANGE TABLE All of these MODIFY TABLE ALTER TABLE CHANGE TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SELECT statement SELECT 'Hi' FROM DUAL WHERE NULL = NULL; Outputs Nothing FLASE TRUE Hi Nothing FLASE TRUE Hi ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Find all the tuples having temperature greater than 'Paris'. SELECT * FROM weather WHERE temperature > (SELECT city FROM weather WHERE city = 'Paris') SELECT * FROM weather WHERE temperature > (SELECT temperature FROM weather WHERE city = 'Paris') SELECT * FROM weather WHERE temperature > (SELECT * FROM weather WHERE city = 'Paris') SELECT * FROM weather WHERE temperature > 'Paris' temperature SELECT * FROM weather WHERE temperature > (SELECT city FROM weather WHERE city = 'Paris') SELECT * FROM weather WHERE temperature > (SELECT temperature FROM weather WHERE city = 'Paris') SELECT * FROM weather WHERE temperature > (SELECT * FROM weather WHERE city = 'Paris') SELECT * FROM weather WHERE temperature > 'Paris' temperature ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL COUNT(field_name) tallies only those rows that contain a value; it ignores all null values. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following group functions ignore NULL values? SUM All of these COUNT MAX SUM All of these COUNT MAX ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL SQL data definition commands make up a(n) ________ . DDL XML HTML DML DDL XML HTML DML ANSWER DOWNLOAD EXAMIANS APP
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