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ICT for Library <strong>and</strong> Information Professionals: A Training Package for Developing Countries<br />
Student’s Guide<br />
Slide 22<br />
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Sorting <strong>information</strong><br />
v Sort parameters :<br />
• Sort key parameters: up to four sort keys<br />
may be specified. If more than one record<br />
has the same sort key (Author) then a<br />
second sort key can be used to sort them.<br />
If a record does not have the primary sort<br />
key it will not appear in the sorted list.<br />
UNESCO ICTLIP Module 4. Lesson 4<br />
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Slide 23<br />
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Sorting <strong>information</strong><br />
v Sort key parameters : for each sort key<br />
three sets of <strong>information</strong> have to be<br />
provided<br />
• Key length: This defines how many<br />
characters are to be taken from the<br />
specified field.<br />
• Heading processing indicator: You can<br />
select 0,1,2,or 3. Your choice should depend<br />
on what you intend to produce. For example,<br />
a catalog card would be 1, <strong>and</strong> an accession<br />
list would be 0<br />
UNESCO ICTLIP Module 4. Lesson 4<br />
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Slide 24<br />
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Sorting <strong>information</strong><br />
vA Field selection table: This is similar<br />
to the FST lines in the database<br />
definition services. Here data are<br />
selected to act as sort keys. Eg. 1 0<br />
(v10/) This selects sort key 1 , using<br />
the whole field from field 10<br />
(repeatable field)<br />
UNESCO ICTLIP Module 4. Lesson 4<br />
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Module 4:<strong>Database</strong> Design, <strong>and</strong> Information Storage <strong>and</strong> Retrieval: Lesson 4 Page 38 of 59