SQL & PL/SQL :: To Retrieve Rows Which Have Same Buyer ID

Dec 1, 2010

My table "xxbuyer_det" contains the below data.

buyer_id Invoice_numPriceItem
------------------------------------
148137110A
149314211B
149314315C
149314415F
148120520D
148120625E

My requirement is to select the rows which have same buyer_id more than or equals to two times (>=2). I am trying with the below query. But this query is failing(not retrieving any data) as i have used group by class and count value is 1 for every record.

SELECT BUYER_ID, INVOICE_NUM, PRICE
FROM
xxbuyer_det
GROUP BY
BUYER_ID,
INVOICE_NUM,
PRICE
HAVING COUNT(*) >=2

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Now comes the big issue

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Typically I wrote the query as:

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I have tried the following in the office:

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using INLINE VIEW = no luck

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