Question

Strange problem with date formatting...

Asked by: tmss_it_dept

Hello all.  I have a situation which I hope I word correctly.  I am writing 2 .ASP pages to dynamically create XML for a Gantt chart that I am using, and during my testing, I started getting the following error on one of the pages:

        Microsoft OLE DB Provider for SQL Server error '80040e07'

        The conversion of char data type to smalldatetime data type resulted in an out-of-range smalldatetime value.

        /charts2/data_gantt_xml2.asp, line 344

I have a main page which pulls XML data from the other two pages and displays two flash Gantt charts, one for the first six months of data, and another for the last six months of data.  The first one is working fine, but the second one is not.   The only difference between the two files creating the XML is the following, in which I am just giving each process a starting point.

These work - (First ASP/XML sheet)

     Month1 = "3/15/2006"
     Month2 = DateAdd("m",1,"3/15/2006")
     Month3 = DateAdd("m",2,"3/15/2006")
     Month4 = DateAdd("m",3,"3/15/2006")
     Month5 = DateAdd("m",4,"3/15/2006")
     Month6 = DateAdd("m",5,"3/15/2006")

These DON'T work - (Second ASP/XML sheet)

     Month1 = DateAdd("m",6,"3/15/2006")
     Month2 = DateAdd("m",7,"3/15/2006")
     Month3 = DateAdd("m",8,"3/15/2006")
     Month4 = DateAdd("m",9,"3/15/2006")
     Month5 = DateAdd("m",10,"3/15/2006")
     Month6 = DateAdd("m",11,"3/15/2006")

Although, I noticed by just changing the amount of the interval in the DateAdd() function down by one it works.  For example, I changed:

     Month1 = DateAdd("m",6,"3/15/2006")  to  Month1 = DateAdd("m",5,"3/15/2006")  .. and so on through the rest of them.  But I did notice that some combinations still fail.  

I even tried this and just changing the month of 'date1' some would work and some wouldn't.

     date1 = "6/15/2006"
     date1 = FormatDateTime(date1,2)

     Month1 = DateAdd("m",8,date1)
     Month2 = DateAdd("m",9,date1)
     Month3 = DateAdd("m",10,date1)
     Month4 = DateAdd("m",11,date1)
     Month5 = DateAdd("m",12,date1)
     Month6 = DateAdd("m",13,date1)

Sorry for the long post, and any suggestions would be greatly appreciated.

Thanks,

Mike

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Asked On
2006-11-17 at 16:40:08ID22065188
Tags

function

Topic

Active Server Pages (ASP)

Participating Experts
1
Points
250
Comments
6

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Answers

 

by: carlmahonPosted on 2006-11-17 at 17:00:02ID: 17969726

Is there a SQL query? I am confused why there is a SQL error if this code is just loading variables.

Which line is 344

 

by: tmss_it_deptPosted on 2006-11-17 at 17:09:57ID: 17969747

Sorry about that.  Here is the SQL query:

SELECT Projects.ProjectId, Phase.Phase, Projects.StartDate, Projects.EndDate, Phase.StartDate, Phase.EndDate FROM Phase INNER JOIN Projects ON Phase.ProjectId = Projects.ProjectId WHERE (Projects.StartDate between '" & StartOfGraph & "' and '" & EndOfGraph & "' or Projects.EndDate between '" & StartOfGraph & "' and '" & EndOfGraph & "') and (phase.StartDate is not null or phase.EndDate is not null) ORDER BY Projects.StartDate, Projects.EndDate, Phase.StartDate, Phase.EndDate;



If I print the results of the SQL statement, I get the following

SELECT Projects.ProjectId, Phase.Phase, Projects.StartDate, Projects.EndDate, Phase.StartDate, Phase.EndDate FROM Phase INNER JOIN Projects ON Phase.ProjectId = Projects.ProjectId WHERE (Projects.StartDate between '10/1/2006' and '3/30/2007' or Projects.EndDate between '10/1/2006' and '3/30/2007') and (phase.StartDate is not null or phase.EndDate is not null) ORDER BY Projects.StartDate, Projects.EndDate, Phase.StartDate, Phase.EndDate;


Thanks,

Mike

 

by: carlmahonPosted on 2006-11-17 at 17:31:14ID: 17969887

I think it is an issue with the date being interpreted incorrectly. You can try SET DateFormat mdy;

SET DateFormat mdy; SELECT Projects.ProjectId, Phase.Phase, Projects.StartDate, Projects.EndDate, Phase.StartDate, Phase.EndDate FROM Phase INNER JOIN Projects ON Phase.ProjectId = Projects.ProjectId WHERE (Projects.StartDate between '" & StartOfGraph & "' and '" & EndOfGraph & "' or Projects.EndDate between '" & StartOfGraph & "' and '" & EndOfGraph & "') and (phase.StartDate is not null or phase.EndDate is not null) ORDER BY Projects.StartDate, Projects.EndDate, Phase.StartDate, Phase.EndDate;

Or this ( http://classicasp.aspfaq.com/date-time-routines-manipulation/could-i-get-a-little-help-with-dates.html)
Below is their function an it setup with your query

    Function niceDateSQL(dt)
 
        dts = split(dt, "/")
 
        ' assuming m/d/y data entry:
        y = dts(2)
        m = pad(dts(0), 2)
        d = pad(dts(1), 2)
 
        ' if people enter d/m/y, swap them:
        ' d = pad(dts(0), 2)
        ' m = pad(dts(1), 2)
 
        niceDateSQL = "'" & y & m & d & "'"
 
    End Function
 
    Function niceDateAccess(dt)
 
        dts = split(dt, "/")
 
        ' assuming m/d/y data entry:
        y = dts(2)
        m = pad(dts(0), 2)
        d = pad(dts(1), 2)
 
        ' if people enter d/m/y, swap them:
        ' d = pad(dts(0), 2)
        ' m = pad(dts(1), 2)
 
        niceDateAccess = "#" & y & "-" & m & "-" & d & "#"
 
    End Function
 
    Function pad(n, s)
        pad = right(String(s, "0") & n, s)
    End Function

SELECT Projects.ProjectId, Phase.Phase, Projects.StartDate, Projects.EndDate, Phase.StartDate, Phase.EndDate FROM Phase INNER JOIN Projects ON Phase.ProjectId = Projects.ProjectId WHERE (Projects.StartDate between '" & niceDateSQL(StartOfGraph) & "' and '" & niceDateSQL(EndOfGraph) & "' or Projects.EndDate between '" & niceDateSQL(StartOfGraph) & "' and '" & niceDateSQL(EndOfGraph) & "') and (phase.StartDate is not null or phase.EndDate is not null) ORDER BY Projects.StartDate, Projects.EndDate, Phase.StartDate, Phase.EndDate;


 

by: carlmahonPosted on 2006-11-17 at 17:32:30ID: 17969891

 

by: tmss_it_deptPosted on 2006-11-17 at 17:38:12ID: 17969899

You know what, I just figured out my problem.  When I was looking at the output of the SQL statement above, I noticed that it only used 30 days in March instead of 31.  See, what I did was create the following variables to get the last day of the month for my Gantt range:

Jan_EOM = 31
Feb_EOM = 28
Mar_EOM = 31
Apr_EOM = 30
May_EOM = 31
Jun_EOM = 30
Jul_EOM = 31
Aug_EOM = 31
Sep_EOM = 30
Oct_EOM = 31
Nov_EOM = 30
Dec_EOM = 31

Well, I was having to assemble my dates with 3 variables  m & "/" & d & "/" & y  and ended up being off by a month, so when it would assign a month like March and put 30 days i.e.  3/30/2006 it would be fine, but if I came to assemble February for instance, and added a 30 or 31 i.e. 2/30/2006, then obviously it wasn't a legal date.  I found my issue and now it is working great.  Thank you for your input and I will hook you up with points for your effort.

Mike

 

by: carlmahonPosted on 2006-11-17 at 17:43:42ID: 17969910

Nice find. I am glad it is working now.

~Carl

20120131-EE-VQP-002

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