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SQL Exercises: Find the highest purchase amount of the customers in a particular date

SQL Aggregate Functions: Exercise-12 with Solution

From the following table, write a SQL query to find the highest order (purchase) amount by each customer on a particular order date. Filter the result by highest order (purchase) amount above 2000.00. 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)>2000.00;

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

Relational Algebra Expression:

Relational Algebra Expression: Find the highest purchase amount of the customers in a particular date.

Relational Algebra Tree:

Relational Algebra Tree: Find the highest purchase amount of the customers in a particular date.

Explanation:

Syntax of find the highest purchase amount of the  customers in a particular date

Pictorial presentation:

Find the highest purchase amount of the  customers in a particular date

Practice Online


Query Visualization:

Duration:

Query visualization of Find the highest purchase amount of the customers in a particular date - Duration

Rows:

Query visualization of Find the highest purchase amount of the customers in a particular date - Rows

Cost:

Query visualization of Find the highest purchase amount of the customers in a particular date - Cost

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Previous: From the following table, write a SQL query to find the highest purchase amount on '2012-08-17' by each salesperson. Return salesperson ID, purchase amount.
Next: 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.

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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