SQL group functions - SQL group by clause - SQL aggregate functions - SQL having clause

Published: 08 March 2019
on channel: Prashant Munshi

186

SQL group functions. aggregate functions . Group by, Having clause. Advanced courses : https://bit.ly/3oNeUJN
#SQLGroupBy #GroupFunctions #Crazy4DB #MunshiSir #LearnSQL #BasicSQL
Problem to solve : Please solve the query of listing rows of employees who are getting less salary than the average salary of their own department by using in-line view.

Interview Question : How the avg function is used to find the average over all the rows in the group if the referenced column may contain NULL values.
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