https://labviewwiki.org/w/index.php?action=history&feed=atom&title=Library_class%2FDataLogging.Lifespan_propertyLibrary class/DataLogging.Lifespan property - Revision history2026-05-08T09:04:30ZRevision history for this page on the wikiMediaWiki 1.43.0https://labviewwiki.org/w/index.php?title=Library_class/DataLogging.Lifespan_property&diff=20530&oldid=prevQ: Category reorg2020-05-07T13:31:59Z<p>Category reorg</p>
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</table>Qhttps://labviewwiki.org/w/index.php?title=Library_class/DataLogging.Lifespan_property&diff=12165&oldid=prevQ: Added new property page.2020-04-03T04:35:28Z<p>Added new property page.</p>
<p><b>New page</b></p><div>{{VIServerProperty<br />
| classid = 80<br />
| propertyid = 4D10E815<br />
| scope=basic<br />
| dataname = DataLogging.Lifespan<br />
| shortname = DataLogging.Lifespan<br />
| longname = DataLogging:Lifespan<br />
| datatypeimage = U32.png<br />
| datatype = U32<br />
| propertynodeimage = Library-DataLogging-Lifespan.png<br />
| availableinrealtime = No<br />
| availableinruntime = No<br />
| loadsbd = No<br />
| loadsfp = No<br />
| needsauthentication = No<br />
| permissions = Read/Write<br />
| remoteallowed = Yes<br />
| settablewhenrunning = Yes<br />
|}}<br />
{{TOCright}}<br />
<br />
Sets the lifespan (in days) of the logged data in the database. If value is 0, then data is always available, otherwise the database can destroy data after the number of specified days.<br />
<br />
The database only discards data if new data is logged. This property affects all data from the library stored in the database, not just the most recent data. For example, if you set this property to four days and you have three days of data, the database does not destroy any data. However, if you set this same property to two days from four days and you have three days of data, the database can destroy any data collected more than two days ago.{| class="wikitable" <br />
|-<br />
| '''Note''' The LabVIEW Datalogging and Supervisory Control Module supports this property in the Run-Time Engine.<br />
|}<br />
== Uses ==<br />
{{ambox|text=Specific use cases for this property.}}<br />
<br />
== History ==<br />
{{ambox|text=History information is needed. What changes have occurred over previous versions?}}<br />
{| class="wikitable"<br />
! Version<br />
! Change(s)<br />
|-<br />
|[[File:LV2018.png|frameless|border|64x64px|LabVIEW 2018|link=LabVIEW 2018]]<br />
|More info to come.<br />
|}<br />
== See Also ==<br />
{{ambox|text=Add links to internal wiki pages that would also help.}}<br />
<br />
== External Links ==<br />
{{ambox|text=Add links to external resources that would also help.}}<br />
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[[Category: Property]] [[Category:VI Server Property]]</div>Q