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Product Code Searching (cont'd.)

Working with Codes

Some information providers, such as Gale Group and Dun & Bradstreet, have developed their own specialized product codes based on either the four-digit U.S. SIC codes or the NAICS codes. Product codes range from two- to seven-digit numbers and are arranged hierarchically.

Tip 5-5

Other databases, such as the Kompass files and PIERS, use a coding scheme developed specifically for their databases. Codes can be found online in the Dialog Product Code Finder (File 413).

We could use the Product Code Finder for this search; however, we already know from looking at the record in File 9 that the product code is 283463 for antidepressants.

TableBase (File 93) is an excellent file to use to find statistics. This database will give Bev a detailed table of statistics.

Command Summary Click the Command Summary icon to see a summary of the commands we will use for this search.

We will BEGIN in File 93 and enter our SELECT statement in the command text box as follows:

select pc=283463
Table base with pc search

By using just the prefix PC= for product code we can perform a simple search and yet get the necessary information.

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5-6

Authoritative Answers Enriched by ProQuest

Search Tip 5-5:

SELECTing a code with less than seven digits will retrieve all the more specific codes beginning with those digits. Below are the product codes for telecommunications:

5133 Telecommunications
51331 Wired Telecommunications Carriers
51332 Wireless Telecommunications Carriers
(except Satellite)
513321 Paging
513322 Cellular and Other Wireless Telecommunications

The command select pc=5133 will retrieve all of the more specific entries related to the 5133 product code for telecommunications.

Command SummaryCommand Summary

Product Code Sample Search

?begin 93
?select pc=283463
?type s1/free/1-5
?type s1/full/5