How to use the form.
Read this first!
In this form you can select fields and enter data to search on. After
you've pressed the 'SEARCH' button, the wwwopac will start a search based on
the form.
The searchroutine is case insensitive.
Field
Here you select the field to search on.
When you want to search more than one value in a field,
select the field in serveral lines and enter the values you want to find.
You can set the operator, truncation and the boolean for all those fields
separately
Operator
You can set the relation between the value you enter in the form and the
value in the record. The value in the record can be smaller than (<), smaller
than or equal to (<=), equal to (=), greater than or equal to (>=) or
greater than (>) the value you enter in the form. Using contains, you can
also instruct the wwwopac to search for the value anywhere in the field. All
the characters you've entered for this field, then have to be in the field,
next to each other, in the same order as they are in the form.
Value
The value you enter is the value the wwwopac will search for. With the
operator you can determine how this value should relate to the value in the
records.
Truncation
Using truncation (by checking the checkbox) any string of characters (or no
characters at all) is allowed after the ones you've already entered. This
means that the search will include any word starting with the characters
you've entered and the string of characters itself.
An example:
Entering comp in the title field will result in every record
that has a word starting with 'comp' (such as 'company',
'companies' and 'competition') in the title.
Truncation only works in combination with the '=' operator.
With the other operators only the value you've entered is used.
Boolean
When you want to search on several fields, you can combine those fields using
'and', 'or' and 'not'.
Title
In this field you can enter words from the title. When you enter more than
one word, all records will be retrieved that have those words in no
particular order in the title.
Author
In this field you can enter the name of the author you want to find
(e.g. 'Ald' or 'Aldrich, George C').
Organisation
Organisation works like 'author' (e.g. 'Dept'
or 'Department of Trade and Industry').
Keywords
Here you can enter keywords that the search engine should look
for. The order of the words is not important. An example from our
database: 'bank', which will find 'Bank of England',
but also 'Bankruptcy'.
Abstract
In this field you can enter words from the abstract to look for. The
order of the words is not important.
Publisher
Here you can enter the name of the publisher that the search engine
should look for.
Year
Here you can enter the year of publishing, e.g. '1990' or '198'.
Adlib Information Systems BV, The Netherlands
(Webmaster@nl.adlibsoft.com).