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SQL Exercises: Find highest purchase amount by the customer within a specific list

SQL Aggregate Functions: Exercise-14 with Solution

From the following table, write a SQL query to find the maximum order (purchase) amount based on the combination of each customer and order date. Filter the rows for maximum order (purchase) amount is either 2000, 3000, 5760, 6000. 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) IN(2000 ,3000,5760, 6000);

Output of the Query:

customer_id	ord_date	max
3002		2012-09-10	5760.00

Explanation :

Syntax of find higher purchase amount by the customer within a specific list

Pictorial presentation:

Find higher purchase amount by the customer within a specific list

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Query Visualization:

Duration:

Query visualization of Find higher purchase amount by the customer within a specific list - Duration

Rows:

Query visualization of Find higher purchase amount by the customer within a specific list - Rows

Cost:

Query visualization of Find higher purchase amount by the customer within a specific list - Cost

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Previous: 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.
Next: From the following table, write a SQL query to find the maximum order (purchase) amount by each customer. The customer ID should be in the range 3002 and 3007(Begin and end values are included.). Return customer id and maximum purchase amount.

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SQL: Tips of the Day

SQL Server SELECT into existing table. 

INSERT INTO dbo.TABLETWO
SELECT col1, col2
  FROM dbo.TABLEONE
 WHERE col3 LIKE @search_key

This assumes there's only two columns in dbo.TABLETWO - you need to specify the columns otherwise:

INSERT INTO dbo.TABLETWO
  (col1, col2)
SELECT col1, col2
  FROM dbo.TABLEONE
 WHERE col3 LIKE @search_key

Database: SQL Server

Ref: https://bit.ly/3y6tpA3