📜  数据安全与数据完整性的区别

📅  最后修改于: 2021-09-14 02:22:49             🧑  作者: Mango

1. 数据安全:
数据安全是指防止未经授权的用户获取数据。仅允许授权用户访问数据。在数据库中,DBA 或部门负责人可以访问所有数据。一些用户只被允许检索数据,而其他用户被允许检索和修改数据。

2. 数据完整性:
数据完整性被定义为数据库中包含的数据既正确又一致。为此,存储在数据库中的数据必须满足某些类型的程序(规则)。数据库中的数据必须正确且一致。因此,存储在数据库中的数据必须满足某些类型的过程(规则)。 DBMS 提供了不同的方式来实现这种类型的约束(规则)。这提高了数据库中的数据完整性。

数据安全和数据完整性的区别:

S.No. Data Security Data Integrity
1. Data security refers to the prevention of data corruption through the use of controlled access mechanisms. Data integrity refers to the quality of data, which assures the data is complete and has a whole structure.
2. Its motive is the protection of data. Its motive is the validity of data.
3. Its work is to only the people who should have access to the data are the only ones who can access the data. Its work is to check the data is correct and not corrupt.
4. It refers to making sure that data is accessed by its intended users, thus ensuring the privacy and protection of data. It refers to the structure of the data and how it matches the schema of the database.
5. Some of the popular means of data security are authentication/authorization, masking, and encryptions. Some of the means to preserve integrity are backing up, error detection, designing a suitable user interface and correcting data.
6. It relates to the physical form of data against accidental or intentional loss or misuse and destruction. It relates to the logical protection (correct, complete and consistence) of data.
7. It avoids unauthorized access of data. It avoids human error when data is entered.
8. It can be implemented through :
  • user accounts (passwords)
  • authentication schemes
It can be implemented by following rule :
  • Primary Key
  • Foreign Key
  • Relationship