01. | Redundant data is present. | No presence of redundant data. |
02. | Query processing(SQL) is not applicable/efficient in this. | Query processing(SQL) is applicable or efficient in this. |
03. | Does not support Normalization hence the data consistency is less. | Support normalisation, hence the data consistency is high. |
04. | Simple structure or Less Complex | Complex Structure. |
05. | Does not support complicated transactions. | Support heavy or complicated transactions. |
06. | Less Secure comparatively. | Supports more security mechanisms. |
07. | Less expensive or set up and maintenance cost comparatively. | Higher set up and maintenance cost comparatively. |
08. | Does not support crash recovery mechanisms. | Crash recovery mechanism is highly supported. |
09. | Examples are COBOL, C++, etc | Examples are Oracle, MySql, SQL Server etc. |
10. | Does not Support fast and unique search. | Support fast and unique search. |
11. | Editing flexibility is poor. | Editing flexibility is effective. |
12. | There is no existence of data models. | It supports several data models - Hierarchal data models, Network data models, Relational data models etc. |
13. | The file system is a way of arranging the files (contains data) in a secondary storage of a computer. | DBMS is an advanced type of software for managing the complex database. |
0 Comments