JOIN ... ON JOIN ... USING JOIN ... WHERE
3 . ( TCO 8 ) Based upon the contents of the BOOKS table shown below , which of the following SQL statements will return the number of categories contained in the table ?
( Points : 4 ) SELECT COUNT ( DISTINCT category ) FROM books ; SELECT DISTINCT COUNT ( category ) FROM books ; SELECT DISTINCT ( COUNT ( category )) FROM books ; SELECT DISTINCT COUNT ( category ) FROM books ;
4 . ( TCO 8 ) The _____________ function can be used to display upper-case characters in lowercase . ( Points : 4 )
CONVERT MIN LESS LOWER 5 . ( TCO 8 ) Which of the following statements will produce the value 21.1 ? ( Points : 4 ) SELECT ROUND ( 21.12 , 1 ) FROM dual ; SELECT ROUND ( 21.12 , -1 ) FROM dual ; SELECT ROUND ( 21.12 , 0 ) FROM dual ; SELECT ROUND ( 21.12 , 0 +) FROM dual ;
6 . ( TCO 9 ) The column to be updated by the UPDATE command is specified in the ______ clause . ( Points : 4 )
UPDATE SET