Question 227

Aggregate Sale Amounts per Customer

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********* * ***** ** ********* *** *******, *******, *** ******* **** ****** *** ********. ******* **** ********* *** **** **** **** **** 3 (>3) ************ .
****: ******* *********** **** * ****** ******.

Table 1: msft_customers

******** ******* ***** *********, ********* ***** **, ****, ***, ******, *** *** **** **** ******.

********_**: ***, ****: *******, ***: ***, ******: *******, ****_****: ****

Table 2: msft_products

***** *********** ** ********, **** ** ******* **, ****, *****, *** ********.

*******_**: ***, *******_****: *******, *****: *******, ********: *******

Table 3: msft_sales

******* ******* ** ***** ************, ********* *** **** **, ******** **, ******* **, **** ** *** ***********, *** *** ******** ** ******** ****.

****_**: ***, ********_**: ***, *******_**: ***, ****_****: ****, ********: ***

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