Data Dictionaries and Its Types in DBMS Urdu/Hindi

#dictionaries #types

In this video, I'm going to talk about data dictionaries and its types in DBMSs in Urdu/Hindi.

Data dictionaries are an important part of any DBMS, and they play a crucial role in data retrieval. In this video, I'll discuss the different types of data dictionaries and their purposes, and I'll give you an example of a data dictionary in action.

I hope you find this video helpful, and I hope that it helps you understand data dictionaries better. If you have any questions, please let me know in the comments!
01:38 Different uses of the data dictionary are as follows:
1. Information About Data
2. Communication with Users
3. Record of Change IN DB Structures
4. Determining the Impact of Change
5. Recording Access Control
6. Audit Information

Different types of data dictionaries are as follows:

04:27 Integrated Data Dictionary:
A data dictionary that is part of DBMS is called an integrated data dictionary.
It performs many functions throughout the life of the database not only in the design phase.
05:05 Active Data Dictionary:
The integrated data dictionary is called active if it is checked by DBMS every time a database is accessed. It is automatically maintained by the system.
05:39 Passive Data Dictionary:
The integrated data dictionary is called passive if it is not used in day-to-day database processing.
05:58 Freestanding Data Dictionary:
A data dictionary that is available without a particular DBMS is called a freestanding data dictionary. It can be a commercial product or a simple file developed by the designer.

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