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Look-up from same Table

Question asked by Wicktor on Nov 6, 2016
Latest reply on Nov 7, 2016 by Wicktor

Hello everyone,

DELIVERY is a Table is where I store when a customer purchases a product.

Among others there are 4 key fields:

1- PURCHASE_DATE (my entry stored field)

2- EXPIRE_DATE (stored calculation).

3- PREVIOUS_EXPIRE_DATE (unstored calculation) obtained using a relationship which shows the EXPIRE_DATE of previous record (based on date)

The relationship called previous_record" works fine and is based on Name=Name, RecordID≠RecordID, Date>Date

4- DELAY (unstored calculation) = PURCHASE_DATE - PREVIOUS_EXPIRE_DATE.

 

All fine except that, since PREVIOUS_EXPIRE_DATE in unstored, also DELAY is unstored.

When producing report using a portal, with some 150.000 records, the time for obtaining the result is frustrating.

I wish to have a PREVIOUS_EXPIRE_DATE stored with a lookup so that DELAY refers to it.

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