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 vote338 views1 answer
Less mysql display
SQL
4 votes369 views1 answer
An error occurred while installing pg (1.2.3), and Bundler cannot continue. Make sure that `gem install pg -v '1.2.3' --source 'https://rubygems.org/'` succeeds before bundling.
SQL
-1 vote330 views1 answer
Sql oracle take only last results
SQL
5 votes336 views3 answers
Oracle first day of last year
SQL
0 vote342 views1 answer
Sql file in postgres with pgadmin
SQL
0 vote359 views1 answer
Sql quary intervewi question
SQL
0 vote327 views1 answer
Mysql cdn link
SQL
1 vote358 views4 answers
Get week day from date in sql
SQL
93 votes451 views4 answers
Create database postgres
SQL
0 vote352 views2 answers
How to prevent sql injection in java
SQL