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What are the stages of database development? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

The development history of database has gone through three stages: manual management, file system and database system.

Manual management data has the following characteristics:

1. Data is not saved

2. The data needs to be managed by the application itself, and there is no corresponding software system responsible for data management.

3. Data is not shared.

4. The data is not independent. After the logical structure or physical structure of the data changes, the application must be modified accordingly, which further increases the burden on the programmer.

The file system phase is characterized by:

1. The data can be preserved for a long time.

2. The data is managed by the special software, that is, the file system, and the program and data are converted by the access method provided by the software, so that there is a certain independence between the application and the data, and the programmer does not have to think too much about the physical details. focus on the algorithm.

3. Poor data sharing

4. Low data independence.

The characteristics of the database system phase are:

1. Data structure

2. Good data sharing and low redundancy.

3. High data independence

4. The data is managed and controlled by DBMS.

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