DateCompare
441
DateCompare
Description
Performs a full date/time comparison of two dates.
Returns
•
-1, if
date1
is less than
date2
•
0, if
date1
is equal to
date2
•
1, if
date1
is greater than
date2
Category
Date and time functions
Function syntax
DateCompare
("
date1"
, "
date2"
[, "
datePart"
])
See also
CreateDateTime
,
DatePart
Parameters
Usage
When passing a date/time object as a string, you must enclose it in quotation marks. Otherwise, it
is interpreted as a numeric representation of a date/time object.
Example
<h3>DateCompare Example</h3>
<p>The DateCompare function compares two date/time values.
<cfif IsDefined("FORM.date1")>
<cfif IsDate(FORM.date1) and IsDate(FORM.date2)>
<cfset comparison = DateCompare(FORM.date1, FORM.date2, FORM.precision)>
<!--- switch on the variable to give various responses --->
<cfswitch expression = #comparison#>
<cfcase value = "-1">
<h3><cfoutput>#DateFormat(FORM.date1)#
#TimeFormat(FORM.date1)#</cfoutput> (Date 1) is
earlier than <cfoutput>#DateFormat(FORM.date2)#
#TimeFormat(FORM.date2)#</cfoutput> (Date 2)</h3>
<I>The dates are not equal</I>
</cfcase>
<cfcase value = "0">
Parameter
Description
date1
Date/time object, in the range 100 AD–9999 AD.
date2
Date/time object, in the range 100 AD–9999 AD.
datePart
Optional. String. Precision of the comparison.
•
s
Precise to the second (default)
•
n
Precise to the minute
•
h
Precise to the hour
•
d
Precise to the day
•
m
Precise to the month
•
yyyy
Precise to the year
Содержание COLDFUSION MX 61-CFML
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