Support : Dialog Search Aids : Successful Searching : MAP XX

MAP (continued)

Basic MAP Command: MAP XX

The simplest form of the MAP command is MAP followed by a specific code (XX) representing the field to be MAPped. (It usually corresponds to the prefix code for the field). The space between MAP and the code is not required. In its simplest form, MAP XX operates on the most recently created set, MAPs all of the terms found in the field indicated from all the records in the set, and creates a permanent SearchSave.

The resulting SearchSave may contain up to 50 SELECT statements, each restricted to 240 characters. If more than 50 SELECT statements are required, additional SearchSaves are created (See Limits of the MAP Command: Maximum Number of SELECT Statements and Maximum Number of SearchSaves.)

The terms from the specified field are listed in alphanumeric order. Within each SELECT statement, the terms are grouped together using OR logic. The OR is represented in the computer response by a plus (+) sign. If two or more SELECT statements are created, a final SELECT statement ORs together all of the search results using the colon (:) range operator. Once the strategy has been created and stored as a SearchSave, it can be EXECUTEd, EDITed, RECALLed, and RELEASEd.

The system response to a MAP command indicates the number of SELECT statements and search terms that are present in the SearchSave, followed by the serial number assigned to it.

In the next example, the MAP RN command is used in Registry of Toxic Effects of Chemical Substances (File 336) to save all CAS^® Registry Numbers for a substance, one of whose synonyms is "alumina." MAP RN saves all CAS^® Registry Numbers in the records of the set, including Alternate, Replaced, Replacing, and Preferred numbers. These CAS^® Registry Numbers are saved in numeric order, and duplicate numbers are eliminated. When the SearchSave is EXECUTEd (EXS), in BIOSIS Previews^® (File 5), all CAS^® Registry Numbers associated with the substance are searched.

• To use the basic MAP command:

? b336
? s sy=alumina

      S1       1  SY=ALUMINA

? map rn

SearchSave "SD004" stored
1 Select Statement, 4 Search Term(s) 
SearchSave SD004

1 SearchSave(s),  4 Search Term(s)

? b 55

? t s1/6,rn/1
1/6,RN/1 
DIALOG(R)File 5: Biosis Previews(R)
(c) 2012 The Thomson Corporation. All rights reserved.

0023329050   Biosis No.: 201200615879 
Exceptional Activity for Methane Combustion over Modular 
Pd@CeO2 Subunits on Functionalized Al2O3 

2012 
Registry Numbers: 7440-05-3: palladium; 1344-28-1: 
alumina; 74-82-8: methane; 1344-28-1: aluminum oxide; 
1306-38-3: cerium(IV) oxide 

(MAP: TEMP Option) 

top