Data dictionary is typically created and maintained by data architects or database administrators in an organization. They are responsible for defining the data elements, their relationships, and metadata attributes to ensure consistency and accuracy of the data across systems.
database user
Data dictionary is a set of meta-data which contains the definition and representation of data elements.It gives a single point of reference of data repository of an organization.Data dictionary lists all data elements but does not say anything about relationships between data elements.
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example of data dictionary
Data dictionary it contains the names and description of the dictionary tables and views.
data dictionary
A data dictionary is a centralized repository of information about data,. The purpose of a data dictionary in oracle is to indicate a more general software utility than a catalogue.
Data dictionary allow the user to split data about in multiple direction
DATABASE is a repository of data...... it is a place which holds the entire data together......while DATA DICTIONARY defines the basis to distinguish the data....this can be in the form of tables, views
A data dictionary provides a comprehensive list of data elements with detailed descriptions, including their meaning, relationships, and structure. It serves as a reference guide to ensure consistency, accuracy, and understanding of data across an organization. It helps in data management, data integration, and data governance practices.
Data dictionary is a repository to store all information. Meta data is data about data. It is data that defines other data. The data dictionary can be metadata that describes some information about the database.
The integrated data dictionary is called active if it is checked by DBMS every time a data base is accessed. It is always consistent with actual data base structure. It is automatically maintained by the system.The integrated data dictionary is called passive if it is not used in day to day database processing.