A.export $VARIABLE

B.set VARIABLE

C.set $VARIABLE

D.env VARIABLE

E.export VARIABLE

A.The number 10 to standard output.

B.The numbers 0 through 9 with one number per line.

C.A continuous stream of numbers increasing in increments of 10 until stopped.

D.The numbers 1 through 10 with one number per line.

A.SELECT COUNT(*) FROM orders ORDER BY order_type;

B.SELECT order_type,COUNT(*) FROM orders WHERE order_type=order_type;

C.SELECT order_type,COUNT(*) FROM orders GROUP BY order_type;

D.SELECT AUTO_COUNT FROM orders COUNT order_type;

E.COUNT(SELECT order_type FROM orders);

A.It fetches new emails from a remote server using POP3 or IMAP.

B.It is a command-line based tool for reading and writing emails.

C.It is a proprietary tool contained only in the qmail MTA.

D.It queries the mail queue of the local MTA.

E.It is a multi-user mailing list manager.

A.FROM

B.CASE

C.WHERE

D.IF