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 Tree:
Explanation:
Pictorial presentation:
Practice Online
Query Visualization:
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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
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