First, the overall introduction:
Oracle databases and databases represent the foundation of all Oracle database objects. Oracle is a large relational database based on advanced Structured Query Language (SQL), in other words, manipulating a large collection of regular data in a convenient, logically managed language. is one of the most popular database of C/s architecture.
Second, the experience of the first meeting:
After reading to Oracle the biggest feeling is, this is not the database design principle of the basic knowledge of books? Therefore, the longer the time, feel their knowledge of the network more circulation, the more extensive, more and more able to experience the original original sentence "How to weave their knowledge into the knowledge network?" Perhaps in the course of your step-by-step growth, you are already unconsciously doing it ...
The first meeting, for Oracle is not very unfamiliar, in fact, this consciousness is unconsciously formed. He is a kind of database, refinement, it belongs to a large relational database.
Third, Characteristics:
- Powerful performance
- A powerful concept
eg: new table space concept, more efficient locking mechanism
eg: hierarchical queries, which are continuously enhanced
- A good distributed management function
users can easily achieve the coordination of multi-database work.
Four, the beautiful beginning:the definition of a new thing is actually the appearance of sounding, self-study and SQL learning has laid a good foundation for themselves, continue!
Oracle Basics-Introduction (first meeting)