Being a database administrator can be an exciting and lucrative career, so thank you for your interest. The amount of data gathered worldwide is growing exponentially, is showing no signs of slowing down, and we need the help!
Most DBAs are either repurposed system administrators who have a particular talent with database systems, or software developers who find schema design and querying data interesting. Often for a junior-level position, experience isn't required but a passionate and determined attitude go a long ways. So no, you don't *need* a certification to become a DBA, but having one or more demonstrates a passion for the field.
The most common skills for a DBA are a basic understanding of hardware, relational database design concepts, and the SQL language.
Good luck on your journey and welcome!
Russ recommends the following next steps:
- There are a number of resources freely or cheaply available: Udemy .com has a number of courses on SQL and Database Design.
- There are tons of books available; the Celko books in particular are excellent for understanding SQL and database design.
- Side projects are an awesome way to contribute. Sites such as Wikipedia.org have a vast collection of databases and frequently looks for volunteers to help out.
- Also, don't forget about open source databases such as MySQL and Postgres. All are freely available, and have several online tutorials. In particular, https://pgexercises.com/ is a great way to get started with databases and SQL.