It all looks happy, except the part about "adjusted to timezone". If this repository become a global entity or if daylight savings time is a factor, maybe zulu (GMT) time is the best solution.
Al Ginbey From: [email protected] [mailto:[email protected]] On Behalf Of Tim Sent: Thursday, May 30, 2013 12:29 AM To: 'MarkLogic Developer Discussion' Subject: EXT :Re: [MarkLogic Dev General] Creating a unique timestamp usingfn:current-dateTime() Hi Folks, This has been a lively discussion. Thank you for all of your input. What I decided to do is to create a unique document name by combining the user ID and the results of xdmp:random(), but to create a dated archive of updates to the document, to the unique document name I added the current datetime adjusted to timezone with all nondigits removed: let $tz := fn:adjust-dateTime-to-timezone (fn:current-dateTime(), xs:dayTimeDuration ("PT0H")) return fn:concat($dts, " | ", $tz, " | ", fn:replace($tz cast as xs:string, "[:\-TZ\.]", "")); Tim From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Tim Sent: Wednesday, May 29, 2013 12:08 PM To: 'MarkLogic Developer Discussion' Subject: [MarkLogic Dev General] Creating a unique timestamp using fn:current-dateTime() Hi Folks, I am using fn:current-dateTime() to create a unique timestamp for creating archive filenames, e.g., let $dt := fn:current-dateTime() cast as xs:string return replace(substring($dt, 1, 22), "[:\-T\.]", "") To make it truly unique I need to include part of the fraction of a second, but I noticed that fn:current-dateTime() does not always return the same number of digits for fractions of a second. I have seen results with a range anywhere from 2 to 6 digits. Is there a minimum amount of digits that will be supplied in the fractions digits? Thank you! Tim Meagher
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