QUESTION 9 In SQL DDL (data definition language) commands are used to define the structures of a database. The effects of DDL commands are permanently stored in a data dictionary. An example of a DDL statement is CREATE TABLE aircraft (serial_no INT(10) model no VARCHAR(15) True False QUESTION 10 In SQL DML (data manipulation language) commands are used to interact with the database data. Example of DML commands are INSERT, DELETE, UPDATE and SELECT rows, and CREATE TABLE. True False QUESTION 11 In MySQL, the basic data types are Character (string) Data Types Numeric Data Types Date and Time Data Types Floating Point Data Type All of the above QUESTION 12 By default MySQL runs with autocommit mode enabled. True False