Limiting a Titles List

After you choose a search option and enter a search term, Horizon displays a list of records that match your search terms. You can further limit or narrow your search results to meet certain criteria. (For example, you can limit your search results to items published during or after 1984, or to items with titles that contain the word “labyrinth”.)

This feature applies only to titles lists. You cannot limit alphabetical lists or other closed lists, such as subjects or authors.

You need to use these three elements to narrow your search results:

Field. Specifies the field or criterion that you want to limit a search by. The field description is designated by a bibliographic record field name. (For example, if you limit a list to titles written by a certain author, “author” is the field that you want to limit the search by.)
Limiting Value. Specifies the criterion against which the data in the field is compared. (For example, if you limit a list to items published after 1990, “1990” is the limiting value for that search.) You can truncate a limiting value if you choose “contains” as the limiting operator.
Limiting Operator. Specifies the relationship between the field description and the limiting value.

Here are some examples of limiting operators:

Operator

Example

=Equal to

You may want to limit a list to items with a publication date of 1991 (publication date = 1991) or with an author named Williams (author = Williams). For more information on how Horizon handles the equal to operator in dates when records contain a range of dates, see Limiting a Titles List Using Dates.

<Less than

You may want to search for items with a publication date before 1988 (publication date < 1988) or with an author who comes before Babcock alphabetically (author < Babcock).

>Greater than

You may want to search for items with a publication date after 1996 (publication date > 1996) or with an author who comes after Turner alphabetically (author > Turner).

<=Less than or equal to

You may want to limit a list to items with a publication date before or during 1961 (publication date <= 1961) or with an author named Black or has the last name that comes before Black in the alphabet (author <= Black).

>=Greater than or equal to

You may want to limit a list to items with a publication date after or during 1984 (publication date >= 1984) or with an author named Webb or has a last name that comes after Webb in the alphabet (author >= Webb).

#Not equal to

You may want to limit a list to items with publication dates before or after, but not including, 1988 (publication date # 1988) or whose author is not Franklin (author # Franklin).

Contains

You may want to limit a list to items with subject tags that contain a specified term such as “computers.”

Does not contain

You may want to limit a list to items with subject tags that do not contain “computers.”

To limit a titles list

1 Access a list of titles. (For instructions, see Doing a Basic Search.)
2 Click Limit in the Titles window.

Horizon displays the Search Limit window:

3 Choose the field you want to limit the list by.
4 Click the limiting operator you want to use. (For an explanation of each limiting operator, see the table on See "Operator".)
5 Enter the text or value you want to limit the field against in the Limit text field.
6 Click OK or press ENTER.

Horizon displays the total number of entries in the list and the number of entries that match the limit criteria. After Horizon checks the entire list, the list window displays only those entries that match the criteria. You can choose any options from this window and resume your search.

 


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