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Transaction Pattern Advice [message #1674]

Thu, 18 September 2008 11:08

gpatti
Messages: 283
Registered: August 2008

Senior Member

Would appreciate some guidance on the most suitable transaction pattern for some functionality:

I have a one -> many table relationship where the many table is controlled by start and end dates (so only one effective row per parent row at any given time).

I want to build a transaction that displays all the rows similar to a LINK1 transaction (where there would be exactly one line per parent row) but allows me to update a row on the many table (or even insert if one doesn't exist).

Can a LINK1 transaction be extended in this way?

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Re: Transaction Pattern Advice [message #1675 is a reply to message #1674]

Thu, 18 September 2008 13:22

AJM
Messages: 2371
Registered: April 2006
Location: Surrey, UK

Senior Member

The standard method of dealing with a one-to-many relationship is with a LIST2 pattern. The LINK1 pattern is for one-to-many-to-one (sometimes known as many-to-many) relationships.

Tony Marston
http://www.tonymarston.net
http://www.radicore.org

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