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What is the order for SQL Clause. 

ORDER BY 

GROUP BY 

HAVING 

WHERE 

FROM 

SELECT

1. SELECT

2. FROM

3. WHERE 

4. GROUP BY

5. HAVING 

6. ORDER BY

What can be in SELECT clause

Column names, expressions, aliases, aggregates (if GROUP BY is used)

What cannot be in SELECT clause

Filters, conditions, aggregates without GROUP BY

What can be in WHERE clause

Row-level filters, comparisons, logical operators (AND, OR, NOT)

What cannot be in WHERE clause

Aggregate functions like AVG(), COUNT(), SUM()

What can be in GROUP BY clause

Columns used in SELECT or aggregate functions

What cannot be in GROUP BY clause

Aliases, expressions not in SELECT, DESC keyword

What can be in HAVING clause

Conditions on aggregated results (e.g., HAVING AVG(price) > 100)

What cannot be in HAVING clause

Non-aggregated filters (use WHERE instead)

What can be in ORDER BY clause

Column names, aliases, expressions, ASC/DESC

What cannot be in ORDER BY clause

Grouping logic or filters

Correct SQL clause order

SELECT → FROM → WHERE → GROUP BY → HAVING → ORDER BY

GROUP BY vs ORDER BY – what are the key difference

GROUP BY groups rows; ORDER BY sorts rows or groups

GROUP BY vs ORDER BY – are they independence

They are independent; one does not require the other

Can you use ORDER BY without GROUP BY?

Yes – ORDER BY works on rows even without grouping

Can you use GROUP BY without ORDER BY?

Yes – GROUP BY groups data regardless of sort order

Sorting by multiple fields what do you use

Use: ORDER BY field1 ASC, field2 DESC

GROUP BY has nothing to do with ordering why?

It only groups rows for aggregation

ORDER BY has no impact on grouping why?

It only sorts rows or groups

Can GROUP BY and ORDER BY appear together?

Yes – they are independent and can be used together or separately