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Use “join lateral “ that allows you to specify “fetch first 1 rows only”

tir. 22. sep. 2020 kl. 22.28 skrev Alan Shore via MIDRANGE-L <
midrange-l@xxxxxxxxxxxxxxxxxx>:

Hi everyone

We are on v7r3



I hope I can explain this



I have a query that creates an extract - one record per entity

I need to capture extra data from another file, but this other file can
have multiple records per entity



This extra file contains payment information



Instead of creating an extract with multiple records per entity, I have
been asked to leave it at one record per entity

The only way that I can see this working is to add each piece of data to
the end of the one record



For example

One entity has 2 payments, therefore create 2 new fields on the one entity

Payment_1, Payment_2

Another entity has 5 payments, therefore create the 5 fields

Payment_1, Payment_2, Payment_3, Payment_4, Payment_5

The next entity has 4 payments, therefore create the 4 fields

Payment_1, Payment_2, Payment_3, Payment_4



Hope this makes SOME sense



My question is - how can I do this?



I thought of creating a CTE of

Entity, Payment information, Sequence number

Where the sequence number is the chronological instance of the payment for
that entity

Question is - how to create a sequence number

Then based upon the sequence number, put the payment information into

Payment_1 if sequence is 1, Payment_2 if sequence is 2, Payment_3 if
sequence is 3, Payment_4 if sequence is 4, Payment_5 if sequence is 5

Etc.



Yeesh

I just read this through god knows how many times

Changed the explanation, god know how many times

Hope this makes sense



As always - all answers gratefully accepted







Alan Shore

E-mail : ASHORE@xxxxxxxx<mailto:ASHORE@xxxxxxxx>

Phone [O] : (631) 200-5019

Phone [C] : (631) 880-8640

'If you're going through hell, keep going.'

Winston Churchill



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