Aggregate in Database | American Baptist College - Edubirdie

University:
American Baptist College
Course:
CSCI 1534 | Data Analysis and Visualization
Academic year:

2023
Views:

150

Pages:

2
Author:

Muthia M.

Aggregate GROUP BY Group by is a statement groups rows that have the same values into summary rows, like "find the number of customers in each country". ORDER BY Order by command used to order the data based on certain column or more. Default would be set into ascending (ASC). For example : SELECT id, price FROM product ORDER BY price DESC or SELECT id, price FROM product ORDER BY price DESC HAVING HAVING clause was added to SQL because the WHERE keyword cannot be used with aggregate functions. HAVING command used to set a limitation or condition to your data using AGGREGATE For example : SELECT city, COUNT(id) FROM customer WHERE email = ‘gmail’ OR gender <> ‘Male’ GROUP BY city HAVING COUNT(id) > 20 function.

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