calculating average days

```I am trying to develop a report where in the PartNum footer the
average number of days between orders is calculated. I have
created the following:
Table:	tblItemsRecvd
Fields:
PartNum
SupplrName
DateOrdrd
DateRecd
AmtRecd

Query:  qryItemsRecvd based on tblItemsRcvd
PartNum	Criteria:	[Enter PartNum:]
SupplrName
DateOrdrd
DateRecd
AmtRecd

Report:	 rptItemsRecvd based on qryItemsRecvd

I would like to calculate the average number of days between orders for
the selected part number.  Do I do it in the query (how?) or at the report
level (how?)?  I am using Access2003 and am a novice.
TIA

```
 0
Utf
6/6/2010 11:49:01 PM
access.queries 6343 articles. 1 followers.

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```Hi,

i would do this in the query by using the DateDiff-Function.
Take a look at this link:
http://www.techonthenet.com/access/functions/date/datediff.php

Regards
Jörn

Am 07.06.2010 01:49, schrieb JohnL:
> I am trying to develop a report where in the PartNum footer the
> average number of days between orders is calculated. I have
> created the following:
> Table:	tblItemsRecvd
> Fields:
> 	PartNum
> 	SupplrName
> 	DateOrdrd
> 	DateRecd
> 	AmtRecd
>
> Query:  qryItemsRecvd based on tblItemsRcvd
> 	PartNum	Criteria:	[Enter PartNum:]
> 	SupplrName
> 	DateOrdrd
> 	DateRecd
> 	AmtRecd
>
> Report:	 rptItemsRecvd based on qryItemsRecvd
>
> I would like to calculate the average number of days between orders for
> the selected part number.  Do I do it in the query (how?) or at the report
> level (how?)?  I am using Access2003 and am a novice.
> TIA
>

```
 0
UTF
6/7/2010 12:06:10 AM
```JohnL wrote:

>I am trying to develop a report where in the PartNum footer the
>average number of days between orders is calculated. I have
>created the following:
>Table:	tblItemsRecvd
>Fields:
>	PartNum
>	SupplrName
>	DateOrdrd
>	DateRecd
>	AmtRecd
>
>Query:  qryItemsRecvd based on tblItemsRcvd
>	PartNum	Criteria:	[Enter PartNum:]
>	SupplrName
>	DateOrdrd
>	DateRecd
>	AmtRecd
>
>Report:	 rptItemsRecvd based on qryItemsRecvd
>
>I would like to calculate the average number of days between orders for
>the selected part number.  Do I do it in the query (how?) or at the report
>level (how?)?  I am using Access2003 and am a novice.

You can do it either place, but the quer would have to be
Totals type query, which may complicate things.

I think it is easier to do in a report with a text box
expression like:
=Avg(DateDiff("d", DateOrdrd, DateRecd))
in either the partNum group header and/or footer section.

--
Marsh
MVP [MS Access]
```
 0
Marshall
6/7/2010 1:12:53 AM

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