| From: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> |
|---|---|
| To: | Anthony Apollis <anthony(dot)apollis(at)gmail(dot)com>, pgsql-general(at)lists(dot)postgresql(dot)org |
| Subject: | Re: Unique Primary Key Linked to Multiple Accounts |
| Date: | 2023-11-13 16:45:24 |
| Message-ID: | f3234005-01aa-4a0f-9caa-c002f0e46c91@aklaver.com |
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| Lists: | pgsql-general |
On 11/12/23 23:02, Anthony Apollis wrote:
> Please advice. I brought in data from SAP and assigned unique primary
> key to the table:
>
>
> I joined it with a dimension table.
>
> Joining code
>
> fact."IMETA_ZTRB_MP$F_ZTBR_TA_BW"ASfact
> LEFTJOINdim."IMETA_BRACS_Mapping"ASbracs_map
> ONfact."Account_Number"=bracs_map."GCoA"ANDfact."Expense_Type"=bracs_map."EXPENSE FLAG"
>
> It is joined on the Account numbers, which appears in the table multiple
> times. Problem is the Unique Primary Key is then mapped to these Account
> numbers multiple times.
This is not a problem it is the nature of the table definitions and the
query. The PK is "ZTBR_TransactionCode", but you are joining on
fact."Account_Number"=bracs_map."GCoA"ANDfact."Expense_Type"=bracs_map."EXPENSE
FLAG". Since you indicate that there are multiple account numbers in the
table then it is no surprise that the "ZTBR_TransactionCode" is repeated.
> Please advice.
>
--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com
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