What Are Databases Made Of?

Combining Our Results with the Set of All English Language Records; What Have We Spent So Far?!!!

? S S7 AND S9

• 138 S7

• 752078 S9

• S10 129 S7 AND S9

?COST

• 30may03 22:42:18 User556323 Session D1.2

$1.22 0.817 DialUnits File1

$1.22 Estimated cost File1

• $0.20 INTERNET

• $1.42 Estimated cost this search

• $1.46 Estimated total session cost 1.057 DialUnits

•?


	Then I can return to use of the AND Operator to finish the job.

	Gosh, I’ve been doing a lot of searching. What kind of a bill am I running up? The “COST” command allows me to check. Sometimes I’ll use the COST command after a TYPE command to see how much I just spent. Always make sure that you’re TYPE-ing the correct set number or the subsequent COST command might be a bit unsettling. Thankfully, if you ever make an expensive mistake and generate useless output, you can call DIALOG and explain the situation. Be prepared to tell them your User number and the Session number. In this case, the User number is 556323 and the Session number was D1.2. Oh, what’s the TYPE command? Well, I got a little ahead of myself. We have this great (we hope) set S10 and we’d like to look at some of the results. The TYPE command is what we need to use to retrieve the results of our work.