$Sir Date2ND: Difference between revisions

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<span class="pageSubtitle">Convert datetime string to number of days</span>
<span class="pageSubtitle">Convert datetime string to number of days</span>


<p class="warn"><b>Note: </b>Most Sirius $functions have been deprecated in favor of Object Oriented methods. The OO equivalent for the $Sir_Date2ND function is <var>[[StringToDays (String function)|StringToDays]]</var>.</p>
<p class="warn"><b>Note: </b>Many $functions have been deprecated in favor of Object Oriented methods. The OO equivalent for the $Sir_Date2ND function is <var>[[StringToDays (String function)|StringToDays]]</var>.</p>


The <var>$Sir_Date2ND</var> function expects a datetime value string and a datetime format string and returns the input datetime converted to the number of days since 1 January, 1900. It accepts an optional CENTSPAN value and an optional error control string. If an error is detected, the returned value is <code>-9E12</code> (-9000000000000).
The <var>$Sir_Date2ND</var> function expects a datetime value string and a datetime format string and returns the input datetime converted to the number of days 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 <code>-9E12</code> (-9000000000000).
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===Syntax terms===
===Syntax terms===
<table class="syntaxTable">
<table>
<tr><th>%num</th>
<tr><th>%num</th>
<td>Set to the value of <var class="term">dat</var>, converted to the number of days from 1 Jan 1900 12:00 AM.
<td>Set to the value of <var class="term">dat</var>, converted to the number of days from <code>1 Jan 1900 12:00 AM</code>.
</td></tr>
</td></tr>
<tr><th>dat</th>
<tr><th>dat</th>
<td>Datetime value string.</td></tr>
<td>Datetime value string.</td></tr>
<tr><th>fmt</th>
<tr><th>fmt</th>
<td>Datetime format string corresponding to <var class="term">dat</var>. Refer to [[Datetime string formats|"Datetime string formats"]] for an explanation of valid datetime formats and valid dates. Non-strict matching is used for input format <var class="term">fmt</var>; see [[Datetime string formats#Strict and non-strict format matching|"Strict and non-strict format matching"]].</td></tr>
<td>Datetime format string corresponding to <var class="term">dat</var>. Refer to [[Datetime string formats]] for an explanation of valid datetime formats and valid dates. Non-strict matching is used for input format <var class="term">fmt</var>; see [[Datetime string formats#Strict and non-strict format matching|Strict and non-strict format matching]].</td></tr>
 
<tr><th>span</th>
<tr><th>span</th>
<td>Optional <var>CENTSPAN</var> value, default is -50. </td></tr>
<td>Optional <var>CENTSPAN</var> value, default is -50. </td></tr>
<tr><th>errctl</th>
<tr><th>errctl</th>
<td>Optional error control string; refer to [[Datetime string formats#Datetime error handling|"Datetime error handling"]].</td></tr>
<td>Optional error control string; refer to [[Datetime string formats#Datetime error handling|Datetime error handling]].</td></tr>
</table>
</table>


==Usage notes==
==Usage notes==
<ul>
<ul>
<li>Values returned by <var>$Sir_Date2ND</var> can be stored in a <var>BINARY</var> or <var>FLOAT4</var> field, if you want.  
<li>Values returned by <var>$Sir_Date2ND</var> can be stored in a <var>BINARY</var> or <var>FLOAT4</var> field, if you want.</li>
<li>Dates prior to 1 January 1900 will return a negative number.  
 
<li>The inverse of this $function is <var>[[$Sir_ND2Date]]</var>.
<li>Dates prior to 1 January 1900 will return a negative number. </li>
<li><var>$Sir_Date2ND</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>The inverse of this $function is <var>[[$Sir_ND2Date]]</var>.</li>
 
<li><var>$Sir_Date2ND</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>
<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 <var class="term">fmt</var>.
<li><var class="term">dat</var> does not match <var class="term">fmt</var>.</li>
<li><var class="term">span</var> is invalid.
 
</ul>
<li><var class="term">dat</var> is outside of range permitted for <var class="term">fmt</var>.</li>
 
<li><var class="term">span</var> is invalid.</li>
</ul></li>
</ul>
</ul>


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==Products authorizing {{PAGENAMEE}}==  
==Products authorizing {{PAGENAMEE}}==  
<ul class="smallAndTightList">
<ul class="smallAndTightList">
<li>[[Sirius functions]]</li>
<li>[[List of $functions|Sirius functions]]</li>


<li>[[Fast/Unload User Language Interface]]</li>
<li>[[Fast/Unload User Language Interface]]</li>
<li>[http://m204wiki.rocketsoftware.com/images/4/4a/JoclrNew.pdf Janus Open Client]</li>


<li>[http://m204wiki.rocketsoftware.com/images/1/17/JosrvrNew.pdf Janus Open Server]</li>
<li>[[Media:JoclrNew.pdf|Janus Open Client]]</li>
 
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<li>[[Janus Sockets]]</li>
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<li>Japanese functions</li>
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<li>[http://m204wiki.rocketsoftware.com/images/4/4b/SirfieldNew.pdf Sir2000 Field Migration Facility]</li>


<li>''[[Sir2000 User Language Tools]]''
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</ul>
</ul>




[[Category:$Functions|$Sir_Date2ND]]
[[Category:$Functions|$Sir_Date2ND]]

Latest revision as of 22:52, 8 February 2018

Convert datetime string to number of days

Note: Many $functions have been deprecated in favor of Object Oriented methods. The OO equivalent for the $Sir_Date2ND function is StringToDays.

The $Sir_Date2ND function expects a datetime value string and a datetime format string and returns the input datetime converted to the number of days 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

%num = $Sir_Date2ND(dat, fmt, span, errctl)

Syntax terms

%num Set to the value of dat, converted to the number of days from 1 Jan 1900 12:00 AM.
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.

Usage notes

  • Values returned by $Sir_Date2ND can be stored in a BINARY or FLOAT4 field, if you want.
  • Dates prior to 1 January 1900 will return a negative number.
  • The inverse of this $function is $Sir_ND2Date.
  • $Sir_Date2ND 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 12:

%a = $Sir_Date2ND('010695', 'MMDDYY') %b = $Sir_Date2ND('122594', 'MMDDYY') %c = %a - %b Print %c

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