1. SQL is platform independent.   True   False   2. The string constant 'Roger''s' will be stored as _______.   Rogers   Roger''s   Roger's   Roger s   Hint Half-n-half Clue   3. What is the data type that is used to store large amounts of formatted text like objects?   VARCHAR   CLOB   NCHAR   VCHAR   Half-n-half Clue   4. Which of the following symbolic constant yields the current date?   NOW   TODAY   PRESENT_DATE   CURRENT_DATE   Half-n-half Clue   5. To represent a national character set literal, it has to be preceded by _______.   CN   NC   C   N   Half-n-half Clue   6. The size of SQL data types differ across platforms.   True   False   7. Which one of the following operators allow us to concatenate two strings?   &&   ||   &   +   Half-n-half Clue