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SQL Exercises: Higher purchase amount of customers within a range

SQL Aggregate Functions: Exercise-13 with Solution

From the following table, write a SQL query to find the maximum order (purchase) amount in the range 2000 - 6000 (Begin and end values are included.) by combination of each customer and order date. Return customer id, order date and maximum purchase amount.

Sample table: orders


Sample Solution:

SELECT customer_id,ord_date,MAX(purch_amt) 
FROM orders 
GROUP BY customer_id,ord_date 
HAVING MAX(purch_amt) BETWEEN 2000 AND 6000;

Output of the Query:

customer_id	ord_date	max
3007		2012-07-27	2400.60
3002		2012-09-10	5760.00
3009		2012-10-10	2480.40
3002		2012-04-25	3045.60

Code Explanation:

The said SQL query retrieves the customer id, order date, and the maximum purchase amount for each combination of customer id and order date in the 'orders' table.
Using this method, the results will be grouped by customer id and order date, and only those groups with a maximum purchase amount between 2000 and 6000 will be returned to the user.
The "HAVING" clause is used to specify the condition for the groups to be returned and the "BETWEEN" operator is used to define the range of values.

Explanation:

Syntax of find higher purchase amount of customers within a specific range

Visual presentation:

Find higher purchase amount of customers within a specific range

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Query Visualization:

Duration:

Query visualization of Find higher purchase amount of customers within a specific range - Duration

Rows:

Query visualization of Find higher purchase amount of customers within a specific range - Rows

Cost:

Query visualization of Find higher purchase amount of customers within a specific range - Cost

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Previous SQL Exercise: Highest purchase amount of customers on a given date.
Next SQL Exercikse: Higher purchase amount by the customer within a list.

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SQL: Tips of the Day

What is the best way to paginate results in SQL Server?

SELECT  *
FROM    ( SELECT    ROW_NUMBER() OVER ( ORDER BY OrderDate ) AS RowNum, *
          FROM      Orders
          WHERE     OrderDate >= '1980-01-01'
        ) AS RowConstrainedResult
WHERE   RowNum >= 1
    AND RowNum < 20
ORDER BY RowNum

Database: SQL Server

Ref: https://bit.ly/3MGrNlk

 





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