Aggregate function in sql

 -- Emp_Id is a Column Name
 -- employee_tble is Table Name;
 
select count(Emp_Id) from employee_tbl;

select min(Salary) from employee_tbl;

select max(Salary) from employee_tbl;

select sum(Salary) from employee_tbl;

select avg(Salary) from employee_tbl;

What are the aggregate function in sql

--- GROUP FUNCTION | MULTI ROW FUNCTION | AGGREGATE FUNCTION 
--- COUNT , MAX , MIN , SUM , AVG

How to use aggregate functions in sql

This is the example.Aggregate function is AVG.production.products is the table.

SELECT
    AVG(list_price) avg_product_price
FROM
    production.products;

Source: sqlservertutorial.net

Aggregate function in sql

• Single Row Functions:(Lower, Upper, Substr, Length)
function that will run for each row and 
return value for each row.

Multiple Row Functions (Group functions, Aggregate functions):
(Count, MIN , MAX, AVG, SUM)
will run for multiple rows and return a single value

Similar codes

0 vote298 views1 answer
Multiple replace value mssql
SQL
0 vote291 views1 answer
Drush run sql select
SQL
5 votes350 views3 answers
Create function in postgresql
SQL
2 votes263 views3 answers
Mysql cheat sheet
SQL
15 votes287 views4 answers
Sql update from select
SQL
0 vote300 views1 answer
Oracle current timestamp insert statement
SQL
0 vote287 views2 answers
Sql trigger difference between for and after
SQL
0 vote282 views1 answer
Setval postgres example table id
SQL
0 vote318 views1 answer
Python sqlalchemy connection show server
SQL
0 vote295 views1 answer
Sql join on a subquery
SQL