Is MAX, MIN, SUM SQL command standard accross diffrent RDBMS

Question

I only have MySQL installed right now but will these work fine when run in PgSQL, MS SQL, etc.?

SELECT MAX(field) as max_field FROM table
SELECT MIN(field) as max_field FROM table
SELECT SUM(field) as max_field FROM table

Answer 1

You could check for yourself, but aggregate functions are common across most, if not all, RDBMS:

• H2 aggregate functions
• Oracle aggregate functions
• PostgreSQL aggregate functions
• SQL Server aggregate functions

You get the idea.

Answer 2

Yes, they work well in every database.

SELECT AVG(field) as max_field FROM table -- Work fine too

Answer 3

All *SQL RDBMSes are designed to be used with the SQL language. ALL of them. That's why they're called *SQL RDBMSes. Aggregate functions are part of standard SQL, and therefore usable wherever SQL is usable.