Validation On Comparing Dates Problem. Please Help Thanks!

Apr 22, 2006

Hi people,

For the Record Validation of: [Return_Date]<=[Service_Date] I get the following error message when trying to save:

"Invalid SQL Syntax - cannot use multiple columns in a column-level CHECK constrait"

Why? How is this SQL anyway? its a validation rule?!?!?!

Thanks. Neil.

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Apr 7, 2008

Trying to compare start and end dates using a query so this is what i have but nothing is comming up wrong way to go about this? i need to do this for every month till 2012


Expr1: [Start Date]=[Start Date]>1/1/2008
Show: No
Criteria: True

Expr2: [End Date]=[End Date]<1/1/2008
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hi, im not a very good english speaker, so... I have a table where im gonna register some invoices, my problem is that i want to validate that the maturity date has to be major than the emission date, i try this in the" maturity date" column validation rule but doesn´t work, look:

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thanks,

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tblOpDetail
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I have a table of records, which has within it two date fields (effectively, a 'start' and 'end' date for that particular record)

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So the first step (as I see it anyway) is to try to create a query which will give me each date between the two reference dates, in the hope that I can then JOIN that onto another query to perform the necessary calculation for each of the returned dates.

Is there a way to do this?

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03-Apr-2015
04-Apr-2015
05-Apr-2015
06-Apr-2015
07-Apr-2015
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Sep 7, 2006

Hiya-

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One way of doing this is to create another column that contains the date of the previous entry. I can then use DateDiff to subtract one date from the other and give me the difference in days.

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Jul 8, 2014

I have two tables with dates. Between (!) every two following dates in table1, I want to know the number of dates in table2. How do I write an SQL query for this? The tables I have are up to a few hundred records in table 1 and a few thousand records in table2. So to prevent that this takes hours I need a fast query.

To explain the query I need, for example:
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table2
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20/01/2014
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Hi,

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Can you please advise what to do in order that Access takes both rows into
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Hope this makes sense to someone out there!

Thanks!

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