HP RISS Components manual Query expressions, Word characters

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3 Query expression syntax and matching

Query expression syntax and matching describes the RISS Web Interface syntax to use to search and retrieve archived documents (files or email messages), and explains how queries are matched against documents.

Major topics include:

•Query expressions, page 33

•Word characters , page 33

•Letters and digits in different character sets , page 34

•Matching words, page 35

•Matching similar words, page 35

•Matching word sequences, page 36

•Boolean query expressions, page 37

•Nested Boolean query expressions, page 38

•Query expression examples, page 38

Query expressions

Query expressions can be as simple or as complex as needed. The essential idea behind document retrieval is that query words are compared with document words to find a match. You can also:

•Look for document words that are textually similar, but not necessarily identical, to query words. See "Matching similar words" on page 35.

•Look for word sequences in a document: words that are near each other, and in a particular order. See "Matching word sequences" on page 36.

•Combine query words using logical (Boolean) operators (AND, OR, NOT). See "Boolean query expressions" on page 37.

Together, these query constructs provide considerable power to find what you need, provided you learn to use them well.

The way query expressions are interpreted is similar to the way documents are indexed when archived. Text is parsed (broken down) into words. Remaining characters are considered separators and ignored. Query expressions are fundamentally composed of words, no matter how complex the expression.

For indexing and searching, a word need not belong to a natural language, such as English. For example, wt6_ht3 is a valid document word or query word. Query words can contain wildcards, such as in f??t.

Word characters

When the system examines a query expression to determine its words, some characters are not included in query words, but are treated as word separators. When a document is archived, indexing determines which document words are available for searching in the same way.

Learning the rules of creating query words means also learning the rules of document indexing and, therefore, what words you can search for.

User Guide

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Contents HP Reference Information Storage System User Guide Version Page Contents Index Riss Outlook InterfaceFigures Tables Intended audience PrerequisitesRelated documentation HP technical support Document conventions and symbolsDocument conventions TIPSubscription service Other web sitesProviding feedback About this guide Understanding document archiving Riss and RIMRIM applications Application What You Can DoUnderstanding searching and document indexing Indexed document typesMessage Mime types advanced users User Guide Riss overview Logging in and out Using the toolbarUnderstanding the user interface User interface topics includeSearch basics Common tasksCompleting simple searches Riss Web Interface tasksTask Reference Completing advanced searches Search using the following fields on the Advanced SearchQuery Field Matches in the Document Additional advanced search query fieldsDisplaying query or search results Query Results page email content typeQuery results navigation bar Saving query or search results Saving query or search criteriaSave Results Exporting query or search results Sending query or search resultsFile Download dialog box Accessing saved results Accessing saved criteriaDeleting quarantine repositories Copying saved results to a quarantine repositoryTo search for multiple items, use the advanced search form Searching audit log repositoriesAdvanced Search page document content type Logged actions and descriptions Logged Action DescriptionQuery Field Matches Changing your password TroubleshootingProblems exporting results Changing your languageFolder Options dialog box Word characters Query expressionsWord characters and separators Letters and digits in different character setsRegular expression definition of English word characters Letters and digits definedMatching similar words Matching wordsSupported character sets Supported character Description SetFuzzy words Matching word sequencesMeasuring word similarity Simple word sequencesBoolean query expressions Boolean query expressionsSyntax Matches Query expression examples Nested Boolean query expressionsFollowing are examples of query expressions Query expression examplesSetting up the Riss Outlook Interface Installing the Outlook plug-in or OWASupported Outlook versions Riss Search Results folder Archived email messagesRiss Outlook user interface objects Objects DescriptionAccessing exported results Searching for archived documentsRiss Outlook Interface tasks Displaying archived email attachments Using Cache ManagerCache Manager icons Icon DescriptionUser account settings Setting offline cache optionsRiss Outlook Interface administrator tasks Offline Cache Options dialog box Enabling offline cache Archive Options panel, Options dialog boxInformation on configuring EFS Clearing offline cache Setting host informationRiss Information dialog box Displaying the About optionsAbout dialog box Troubleshooting Problems loggingIndex Reference Information Storage System See MimeRIM
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