Repost bbs.ywlm.net post, Oracle learning experience

1. If you have a certain database foundation and know what SQL is going on, you can skip to 2 even if you cannot write simple SQL statements but can understand them. Otherwise, let's take a look at the basic database and the SQL language. You don't need to have a deep understanding of the complex SQL commands, but you don't need to remember them. These SQL commands can be used and learned and memorized later. 2. To learn about Oracle, you must first learn the architecture of Oracle. Now you do not need to understand them in depth, but you need to distinguish several key concepts: instance & database, memory structure, process & those files, such as data file, control file, init parameter file etc, and the relationships between database, tablespace, data file and tablespace, segmnet, extent & Block. Of course, undo tablespace & redo log file should be distinguished. For many beginners, it is not easy to have a clear understanding of these concepts, these are not all about oracle. 3. For some basic concepts about Oracle, the following describes some simple practical operations, that is, how to manage the Oracle database. Of course, it is not about managing all Oracle databases. In this process, you will have a deeper understanding of SQL and Oracle architecture. 4. At this point, you have basically mastered oracle. Next, you will learn other Oracle knowledge based on your needs. If you are a developer, you need to learn more about PL/SQL and developer. This will be a new course. If you are a DBA, continue. 5. Now, you can select based on your actual situation. That is to say, the following content has no special requirements. You can choose to learn more about Oracle management, backup and recovery, performance adjustment, and network. Of course, in the process of learning this knowledge, if you have a better job, you can grow in practice and learn trouble shooting. 6. Of course, in the course of learning, you can communicate with others on a website or forum, read some experience articles from others, or write some experiences on your own. Technological advances are the process of accumulating and refining experience. We hope you can grow together and welcome to exchange ideas with each other.