Help required for Date Based Query using Informix SQL

[Jamie2002]

I need some assistance in writing a query, using Informix SQL that will, for each customer sum the amount they have spent in the FIRST 3 months AFTER they registered.

I am finding it difficult to do this in Informix. Using Oracle I would probably use the MONTHS_BETWEEN function. Is there anything similar to this in Informix. I would be grateful if anyone can give me any ponters on this.

The query looks something like this:

Select client.accountnum, client.opendate, sum(transaction.amount)
from clients, transactions
where clients.accountnum = transactions.accountnum
??? and transactions.date between client.opendate and ???
group by 1, 2

Hope this makes sense! Thanks

Jamie

 

[rac2]

Gee, why not post your question in the Informix Forum.

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