SQL basic: COUNT, DISTINCT, LIMIT
In this lab, you will learn a few useful expressions that are used with SELECT statements. First, you will learn COUNT, which is an aggregate function that retrieves the number of rows that matches the query criteria. Next, you will learn DISTINCT, which is used to remove duplicate values from a specified result set and only return the unique values. Lastly, you will learn LIMIT, which is used for restricting the number of rows retrieved from the table.
Conviértete en miembro de este canal para disfrutar de ventajas:
/ @universomath
¡Puedes apoyar al canal realizando una donación! https://www.paypal.me/universomatematico
On this page of the site you can watch the video online SQL basic: COUNT, DISTINCT, LIMIT with a duration of hours minute second in good quality, which was uploaded by the user Universo Matemático 23 November 2022, share the link with friends and acquaintances, this video has already been watched 209 times on youtube and it was liked by 7 viewers. Enjoy your viewing!
