Search Limits

You can determine which search limiting options are available to let users limit a list of titles by certain criteria (for example, publication date). Staff searching displays these options in the Search Limit window when users click Limit from a Titles List window:

Horizon can use MARC maps defined in the marc_map table as search limiting options (for example, pubdate). You determine which search limiting options are available to users in staff searching by choosing this feature in the marc_map table. (For more information about MARC maps and a description of the Edit MARC Map window, see Understanding Conditional Parts of a MARC Map.)

Search limiting based on MARC data lets searchers narrow a list of matches. You can use it to “weed out” unwanted matches in a keyword search after it has already been initiated. You limit the search by specifying these parameters:

Field option
Limiting operator
Limiting value

For example, if you do a title keyword search for the word “computers,” several titles may be listed. If you want only the latest information on computers, you can limit the search date by choosing “publication date” as the field option, selecting “greater than” as the limiting operator, and entering “2002” as the limiting value. Horizon regenerates the list, showing only those titles published after 2002.

To set up search limits

1 Open the marc_map view in the Table Editor, or start the MARC Map Table process.

The default location of this process is the Administration\Index Control Menu folder.

Horizon displays the List MARC Map window.

2 Choose the MARC map you want to set up search limiting options for.

Horizon displays the Edit MARC Map window:

3 Mark the Search Limit? box.
4 Save your changes.

Note: You must restart Horizon for the Search Limit window to display this new search limiting option.

 


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