GROUP BY
Last updated
What is GROUP BY?
GROUP BY is an SQL clause used in SELECT statements to arrange identical data into groups. It's typically used with aggregate functions (like COUNT, SUM, AVG) to perform calculations on each group of rows. GROUP BY collects data across multiple records and groups the results by one or more columns, allowing for analysis of data at a higher level of granularity. This clause is fundamental for generating summary reports, performing data analysis, and creating meaningful aggregations of data in relational databases.
Free resources to learn GROUP BY
- ArticleSQL GROUP BY
- VideoAdvanced Aggregate Functions in SQL
More in stage 5: Aggregate Queries
GROUP BY: common questions
Can I learn GROUP BY in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain GROUP BY in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this GROUP BY tutorial for beginners?
It is lesson 21 of 112 in the free SQL roadmap, in stage 5, Aggregate Queries. If you are new to SQL, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.