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how an I find the summation of maximum product each team sale in PostgreSQL<br />
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<pre><code id="code-10-28460660-1">		
team	produ	sale
a	coke	100
a	coke	25
a	pepsi	200
a	pepsi	50
		
b	fanta	400
b	coke	27
b	coke	50
		
c	coke	20
c	coke	20
c	fanta	20



the result is


team	maxproduct	totalsellmaxproduct
a	pepsi	250
b	fanta	400
c	coke	40
		

		</code></pre>
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how an I find the summation of maximum product each team sale in PostgreSQL

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find the summation of maximum product of each team sale postgresql

PostgreSQL is an object-relational database management system with an emphasis on extensibility and standards-compliance. As a database server, its primary function is to store data securely, supporting best practices, and to allow for retrieval at the request of other software applications. PostgreSQL implements the majority of the SQL2011 standard, is ACID-compliant and transactional using multiversion concurrency control (MVCC), and handles complex SQL queries using many indexing methods that are not available in other databases. It is cross-platform and runs on many operating systems including Linux, FreeBSD, OS X, Solaris, and Microsoft Windows.