Hello, and welcome to this course. The very first thing I'm going to be doing in this course is going to be introducing you to, well, databases. Yes, our primary focus is Oracle Databases, and specifically, I'm going to be talking to you about Oracle 19c. But that does not mean we don't explore what databases are before you can actually jump into other aspects of the database, such as being able to code and develop and write SQL code, understand how SQL is broken down into bits and pieces, and analyze and parse by the Oracle database. I'm going to be talking to you about what databases are and how far technology has come when it comes to data, as it relates to data, processing data, and working with data. Oracle is the premier database. Oracle did not sway from it's roots of being a database. Early on, Oracle could have been a front-end operating system. It could have invested and become a giant in the networking arena, but they stopped with their roots. They are databases, even today, and especially today. Oracle is synonymous with database and premier database for enterprise-wide systems. If you do your research, you will realize that Oracle, and no one else, is the one that is behind the world's largest data environments: managing, manipulating, processing, storing, analyzing, reporting. That's what Oracle is about. I'm going to be introducing you to databases in general, talking to you about the various different kinds and categories of data, discussing with you other databases that are out there in many different forms, but our focus here is going to be Oracle, specifically Oracle 19c. Everything that I'm going to be discussing with you will be available and visible, and you'll be able to use from Oracle 12c and later, Oracle 20c. Right now, it's in its interim release, but will be released soon. I'm very glad you're here. Stay with me, we're going to have a great time.