The Oracle database itself is free, so anyone can download and install Oracle's database software from Oracle's official website. The fee is License, which is software authorization. If the database is used for commercial purposes, you need to purchase the corresponding software. License for Oracle products.
The operating environment of this article: Windows 7 system, Dell G3 computer, Oracle 11g version.
Is the Oracle database free?
Oracle software itself is free, so anyone can download and install Oracle's database software from the Oracle official website for a fee. License, that is, software authorization. If the database is used for commercial purposes, you need to purchase a license for the corresponding Oracle product. If it is for study or educational purposes only then it is free.
Now Oracle has two authorization methods, based on the number of CPUs (Process) and based on the number of users (Named User Plus). The former method is generally used when the number of users is uncertain or very large, typically in an Internet environment, while the latter method is usually used when the number of users is certain or small.
Extended information:
Characteristics of Oracle database:
1. Complete data management functions:
1) A large amount of data
2) Durability of data storage
3) Sharability of data
4) Reliability of data
2. Products with complete relationships:
1) Information criteria---All information in a relational DBMS should be logically expressed in a way, that is, explicitly represented by values in the table;
2) Guaranteed access criteria
3) View update criterion---as long as the data in the table forming the view changes, the data in the corresponding view changes at the same time
4) Data physical and logical independence criterion
3. Distributed processing function:
ORACLE database has provided distributed processing capabilities since the 5th edition. By the 7th edition, it has relatively complete distributed database functions. An ORACLE distributed The database consists of oracledbms, sql*Net, SQL*CONNECT and other non-ORACLE relational products.
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