Answers for "windows aggregate functions in postgresql"

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windows aggregate functions in postgresql

SELECT depname, empno, salary, avg(salary) OVER (PARTITION BY depname) FROM empsalary;

Posted by: Guest on January-14-2021

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windows aggregate functions in postgresql

depname  | empno | salary |          avg          
-----------+-------+--------+-----------------------
 develop   |    11 |   5200 | 5020.0000000000000000
 develop   |     7 |   4200 | 5020.0000000000000000
 develop   |     9 |   4500 | 5020.0000000000000000
 develop   |     8 |   6000 | 5020.0000000000000000
 develop   |    10 |   5200 | 5020.0000000000000000
 personnel |     5 |   3500 | 3700.0000000000000000
 personnel |     2 |   3900 | 3700.0000000000000000
 sales     |     3 |   4800 | 4866.6666666666666667
 sales     |     1 |   5000 | 4866.6666666666666667
 sales     |     4 |   4800 | 4866.6666666666666667
(10 rows)

Posted by: Guest on January-14-2021

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