update table 6. (TCO 6) When using the ALTER TABLE...DROP COLUMN command, which of the following is not correct? (Points : 4) The command's effect on the table is permanent. You cannot delete the last remaining column in a table. The command deletes both the column and its contents. The command can be used to delete multiple columns from a table. 7. (TCO 6) Which of the following keywords can be used to change the size, datatype, and/or default value of an existing column? (Points : 4) ADD MODIFY CHANGE RESET 8. (TCO 7) Any type of subquery can be used in the _________ clause of a SELECT statement. (Points : 4) WHERE HAVING FROM ORDER BY GROUP Page 3 - Multiple Choice 1. (TCO 7) Using the BOOK_CUSTOMER and BOOK_ORDER tables shown below for references, which SQL statement will return the same results as the following SQL statement?
SELECT * FROM book_customer, book_order; (Points : 4)