$Sir Date2N: Difference between revisions

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<li>Values returned by $Sir_Date2N will often exceed the range that can be represented in a 4-byte integer, so you should probably avoid storing the value in a BINARY or FLOAT4 field.  
<li>Values returned by $Sir_Date2N will often exceed the range that can be represented in a 4-byte integer, so you should probably avoid storing the value in a BINARY or FLOAT4 field.  
<li>Dates prior to 1 January 1900 will return a negative number.  
<li>Dates prior to 1 January 1900 will return a negative number.  
<li>The inverse of this $function is $Sir_N2Date.
<li>The inverse of this $function is <var>[[$Sir_N2Date]]</var>.
<li><var>$Sir_Date2N</var> returns the value <code>-9E12</code> (-9000000000000) in the following cases (see the discussion in [[Datetime string formats#Datetime Error Handling|"Datetime Error Handling"]]):
<li><var>$Sir_Date2N</var> returns the value <code>-9E12</code> (-9000000000000) in the following cases (see the discussion in [[Datetime string formats#Datetime Error Handling|"Datetime Error Handling"]]):
   
   
<ul>
<ul>
<li><var class="term">fmt</var> is not a valid datetime format.
<li><var class="term">fmt</var> is not a valid datetime format.
<li><var class="term">dat</var> does not match '''fmt'''.
<li><var class="term">dat</var> does not match <var class="term">fmt</var>.
<li><var class="term">dat</var> is outside of range permitted for '''fmt'''.
<li><var class="term">dat</var> is outside of range permitted for <var class="term">fmt</var>.
<li><var class="term">span</var> is invalid.
<li><var class="term">span</var> is invalid.
</ul>
</ul>

Revision as of 20:45, 8 February 2012

Convert datetime string to number of seconds/300

Most Sirius $functions have been deprecated in favor of Object Oriented methods. There is currentyly no OO equivalent for the $Sir_Date2N function.

The $Sir_Date2N function expects a datetime value string and a datetime format string and returns the input datetime converted to the number of 1/300th seconds since 1 January, 1900. It accepts an optional CENTSPAN value and an optional error control string. If an error is detected, the returned value is -9E12 (-9000000000000).

Syntax

<section begin="syntax" /> %num = $Sir_Date2N(dat, fmt, span, errctl) <section end="syntax" />

Syntax terms

dat datetime value string.
fmt datetime format string corresponding to dat. Refer to "Datetime string formats" for an explanation of valid datetime formats and valid dates. Non-strict matching is used for input format fmt; see "Strict and non-strict format matching".
span optional CENTSPAN value, default is -50.
errctl optional error control string, refer to "Datetime Error Handling".
%num set to the value of dat, converted to the number of 1/300th second units from 1 Jan 1900 12:00 AM.

Usage notes

  • Values returned by $Sir_Date2N will often exceed the range that can be represented in a 4-byte integer, so you should probably avoid storing the value in a BINARY or FLOAT4 field.
  • Dates prior to 1 January 1900 will return a negative number.
  • The inverse of this $function is $Sir_N2Date.
  • $Sir_Date2N returns the value -9E12 (-9000000000000) in the following cases (see the discussion in "Datetime Error Handling"):
    • fmt is not a valid datetime format.
    • dat does not match fmt.
    • dat is outside of range permitted for fmt.
    • span is invalid.

Example

The following fragment prints the value Before:

If $Sir_Date2N('121494', 'MMDDYY') < $Sir_Date2N('040195', 'MMDDYY') Then Print 'Before' End If


Products authorizing $Sir_Date2N