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.
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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 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.
example of data dictionary
Data dictionary it contains the names and description of the dictionary tables and views.
Metadata is data that provides information about other data, such as the structure, format, and relationships of data elements. A data dictionary, on the other hand, is a centralized repository that defines and describes the data elements within a database, including their definitions, attributes, and relationships. In summary, metadata is broader and encompasses various types of information about data, while a data dictionary specifically focuses on defining and documenting the data elements within a database.
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
A data dictionary is a collection of metadata about the data elements in a database, where as, a database schema is a design blueprint for how data is structured and organized within a database. The data dictionary describes the data, while the schema defines how the data is stored.
A data dictionary is a document that describes database objects such as tables, columns, and their corresponding data types. It provides information about the structure, relationships, and constraints of the database schema.
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