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Date:         Fri, 7 Jul 2006 09:25:35 -0400
Reply-To:     Gerhard Hellriegel <ghellrieg@T-ONLINE.DE>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Gerhard Hellriegel <ghellrieg@T-ONLINE.DE>
Subject:      Re: date validation

If I try to interpret: maybe the char - dates are of the format ddmmyy10.

Means, the dates are all like

On Fri, 7 Jul 2006 06:50:44 -0400, Jim Groeneveld <jim2stat@YAHOO.CO.UK> wrote:

>Hi Jeli, > >I don't quite understand what you are saying. You have two dates as >character fields and the rest as numeric fields. So far so good if with >numeric you mean the number of days since 01jan1960 and not a number which >contains a recognizable day, month and year part. > >Next you say your QC has to make sure the dates are all of the format >DDMMYY10. That is what I don't understand: dates are stored as either >character values (with a certain format, like DDMMYY10.) or numeric values >without a format, to be presented with _any_ format, like DDMMYY10. The >last storage form is best: N of days since 01jan1060, stored in 8 bytes >(the default for numeric values). You can make direct calculations with >these dates. > >So maybe you could elaborate a little bit more on what your QC actually >demands for date fields. > >Regards - Jim. >-- >Jim Groeneveld, Netherlands >Statistician, SAS consultant > > > >On Fri, 7 Jul 2006 03:31:07 -0700, jeli0703@HOTMAIL.CO.UK wrote: > >>Was wondering if anyone can help my friday mind block >> >>I have a dataset with a number of variables in it, some of which are >>dates. >> >>However 2 of the date variables are in character format whilst all the >>others are numeric, thus i can assume that if it was incorrect it would >>be ., >> >>i need to pass it through a quality check to make sure that the dates >>are in the correct format ddmmyy10. and if they fall outside todays >>date then suspend that observation otherwise good data. >> >>any help??

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