Aggregate Functions and GROUP BY | Learn Spatial DB with PostGIS, QGIS | Part 9 |
Material for Practice: https://gisschools.com/course_details...
Join us in this next installment of our Spatial Databases series, where we delve into aggregate functions and the GROUP BY clause using PostGIS and QGIS. We'll explore how to summarize data effectively and group results based on specific criteria. Dive into advanced SQL techniques tailored for spatial data analysis.
Chapters:
0:00:42 - Overview of Aggregate Functions and GROUP BY
0:01:09 - Exploring the Database Structure
0:02:04 - Understanding Aggregate Functions
0:02:53 - Counting Rows with COUNT()
0:03:53 - Calculating Average with AVG()
0:04:23 - Finding Maximum Value with MAX()
0:05:38 - Rounding Values with ROUND()
0:05:56 - Using Alias for Column Names
0:06:32 - Introduction to GROUP BY Clause
0:07:33 - Filtering Data with WHERE Clause
0:09:00 - Grouping by Multiple Columns
0:09:47 - Ordering and Grouping Data
#Aggregate #GoupBy #Postgresql #PostGIS #QGIS
Searching Topics:
SQL Server video :- Explain aggregate functions,group by clause and having keyword ?,
GROUP BY with Aggregate functions in SQL statement,
Understanding the use of GROUP BY clause in SQL,
PostgreSQL: Group By Having | Course | 2019,
SQL Aggregate Functions - SUM, AVG(n), COUNT, MIN, MAX Functions | DBMS,
Aggregate Functions in PostgreSQL(Advanced),
Aggregate Functions(Basic),
PostgreSQL: Group By | Course | 2019,
Understanding the use of GROUP BY clause in SQL,
Introduction to PostGIS,
PostGIS Databases and Geoprocessing,
Complete Course : Learn Spatial Databases with PostGIS and QGIS
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