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Asked by DigDub in PL / SQL, SQL Query Syntax
Hello Experts; I am trying to write a query that will do the following.
I have a single table with the following structure:
Acct# Line Amt
100 1 100.00
100 2 105.00
100 3 110.00
200 1 50.00
200 2 55.00
300 1 200.00
300 2 220.00
300 3 210.00
The line number indicates a history, the larger the line, the more recent the transaction. I need to write a query that returns the most recent amt for each acct# based on the line. I know this involves a nested query, but can't quite seems to get either the syntax or the joins correct. I know I would first need to write a query that finds the max of the line grouped by the acct#, then somehow join that to the table to return the results, but don't know how.
Any help would be appreciated.
20090824-EE-VQP-74 - Hierarchy / EE_QW_3_20080625