Help with SQL statement, please!

Hello,

[Quoted] [Quoted]     I want to select rows from a table where only one field is unique...ie:A [Quoted] [Quoted] customer may have several purchases, but I want to return only the biggest [Quoted] purchases per customer.

[Quoted] [Quoted]     I currently have it returning all purchases for every customer, but would like to see only the max value per customer. Here's what I have:

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