SQL Basic Commands: CRUD Explained #shorts

In this sql tutorial I’ll provide you with some explanation regarding sql basic commands – we’ll go through four SQL commands – the SQL CRUD commands – and I’ll tell you how best to optimize them.

If you’ve found yourself searching for a sql tutorial, you will certainly find these sql interview questions and answers for experienced developers and DBAs interesting:

Q: Is sql injection very dangerous? How to avoid it?
A: Yes, sql injection is a very dangerous security flaw. To avoid sql injection, avoid passing user input straight to a database.

Q: How does a sql index improve sql query performance?
A: A sql index improves database performance by acting as an “index” in a book: by using a sql index your database knows how to find your data in a quick fashion. If you’re after a sql indexes explained video we advise you watch one of our videos on a sql index and its performance.

Q: Explain sql in 100 seconds.
A: SQL is a programming language allowing for work with various RDBMS including mysql server, mariadb server, percona server, and others.

Q: Are sql interview questions for experienced developers and DBAs very difficult?
A: No, these sql interview questions for experienced DBAs aren’t very complex for a DBA worth their salt.

Q: Explain sql joins.
A: sql joins are used to combine rows from a couple of tables in a database management system.

Enjoy the video!

Music:
Skysurf – Pold: https://www.youtube.com/watch?v=I8N4sN2kYYg
Licensed under a Creative Commons Attribution license: https://creativecommons.org/licenses/by/3.0/
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