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Difference between revisions of "Introduction to Expressions"

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imported>Aeric
imported>Aeric
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:* <tt>'Steve'</tt> (a string literal)
:* <tt>'Steve'</tt> (a string literal)
:* <tt>creation_date</tt> (a variable value)
:* <tt>creation_date</tt> (a variable value)
:* <tt>TODAY</tt> (a formula function that returns the current date)


;Examples:
;Examples:
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::<tt>amount * 0.02</tt>
::<tt>amount * 0.02</tt>


:*[[Formula Functions]] can also be included in expressions. For example, to round the result of the previous expression to the nearest 2 decimal places:
:*[[Formula Functions]] can also be included in expressions.  
::<tt>ROUND( amount * 0.02, 2)</tt>
:: For example:
::* <tt>ROUND( amount * 0.02, 2)</tt> rounds the result of the previous expression to the nearest 2 decimal places:
:* <tt>TODAY</tt> is a formula function that returns the current date

Revision as of 23:48, 9 May 2014

An expression is any valid set of literals, variables and operators that evaluates to a single value. An expression is used to build Filter criteria or a Formula. The resulting value can be a number, a string, a date/time, or a Boolean (Logical: TRUE/FALSE).

The simplest expressions are called primary expressions and refer to the value of a literal, variable, or formula function. These are examples of primary expressions:

  • 972 (a numeric literal)
  • 'Steve' (a string literal)
  • creation_date (a variable value)
Examples
  • Primary expressions can be combined with operators--for example, to multiply a variable by a literal value:
amount * 0.02
For example:
  • ROUND( amount * 0.02, 2) rounds the result of the previous expression to the nearest 2 decimal places:
  • TODAY is a formula function that returns the current date