Composing search expressions
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Precedence rules
Expressions are read from left to right. The AND operator takes precedence over the OR
operator; however, terms enclosed in parentheses are evaluated first. When the search engine
encounters nested parentheses, it starts with the innermost term.
Delimiters in expressions
You use angle brackets (< >), double quotation marks ("), and backslashes (\) to delimit various
elements in a search expression, as the following table describes:
Operators and modifiers
You are probably familiar with searches containing AND, OR, and NOT. Verity has many
additional operators and modifiers, of various types, that offer you a high degree of specificity in
setting search parameters.
Operators
An
operator
represents logic to be applied to a search element. This logic defines the qualifications
that a document must meet to be retrieved. You can use operators to refine your search or to
influence the results in other ways.
For example, you can construct an HTML form for conducting searches. In the form, you can
search for a single term. You can refine the search by limiting the search scope in a number of
ways. Operators are available for limiting a query to a sentence or paragraph, and you can search
words based on proximity.
Ordinarily, you use operators in explicit searches, as follows:
"<operator>search_string"
Example
Search result
Moses AND Larry OR Jerome
documents that contain Moses and Larry, or Jerome
(Moses AND Larry) OR Jerome
(same as above)
Moses AND (Larry OR Jerome)
documents that contain Moses and either Larry or Jerome
Character
Usage
< >
Left and right angle brackets are reserved for designating operators and modifiers.
They are optional for the AND, OR, and NOT, but required for all other operators.
"
Use double quotation marks in expressions to search for a word that is otherwise
reserved as an operator or modifier, such as AND, OR, and NOT.
\
To include a backslash in a search expression, insert two backslashes for each
backslash character that you want included in the search; for example,
C:\\cfusionmx\\bin.
Summary of Contents for COLDFUSION MX 61-DEVELOPING COLDFUSION MX
Page 1: ...Developing ColdFusion MX Applications...
Page 22: ...22 Contents...
Page 38: ......
Page 52: ...52 Chapter 2 Elements of CFML...
Page 162: ......
Page 218: ...218 Chapter 10 Writing and Calling User Defined Functions...
Page 250: ...250 Chapter 11 Building and Using ColdFusion Components...
Page 264: ...264 Chapter 12 Building Custom CFXAPI Tags...
Page 266: ......
Page 314: ...314 Chapter 14 Handling Errors...
Page 344: ...344 Chapter 15 Using Persistent Data and Locking...
Page 349: ...About user security 349...
Page 357: ...Security scenarios 357...
Page 370: ...370 Chapter 16 Securing Applications...
Page 388: ...388 Chapter 17 Developing Globalized Applications...
Page 408: ...408 Chapter 18 Debugging and Troubleshooting Applications...
Page 410: ......
Page 426: ...426 Chapter 19 Introduction to Databases and SQL...
Page 476: ...476 Chapter 22 Using Query of Queries...
Page 534: ...534 Chapter 24 Building a Search Interface...
Page 556: ...556 Chapter 25 Using Verity Search Expressions...
Page 558: ......
Page 582: ...582 Chapter 26 Retrieving and Formatting Data...
Page 668: ......
Page 734: ...734 Chapter 32 Using Web Services...
Page 760: ...760 Chapter 33 Integrating J2EE and Java Elements in CFML Applications...
Page 786: ...786 Chapter 34 Integrating COM and CORBA Objects in CFML Applications...
Page 788: ......