SQL Exercises: Find the maximum purchase amount of all the orders
SQL Aggregate Functions: Exercise-6 with Solution
From the following table, write a SQL query to find the maximum purchase amount.
Sample table: orders
Sample Solution:
SELECT MAX (purch_amt)
FROM orders;
Output of the Query:
max 5760.00
Code Explanation:
The said SQL statement is used to retrieve the highest value in the "purch_amt" column from the 'orders' table. The "MAX" function is used to find the maximum value in the specified column.
The result of the query would be a single value representing the highest "purch_amt" in the 'orders' table.
Relational Algebra Expression:
Relational Algebra Tree:
Explanation:
Visual presentation:
Practice Online
Query Visualization:
Duration:
Rows:
Cost:
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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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