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Process metadata is the fact measurement when building and using a DW/BI system. Some organizations make a living out of collecting and selling this sort of data to companies – in that case, the process metadata becomes the business metadata for the fact and dimension tables.
Oracle Database provides information about all of the tables, views, columns, and procedures in a database. This information about information is known as metadata. [1] It is stored in two locations: data dictionary tables (accessed via built-in views) and a metadata registry.
A data dictionary, or metadata repository, as defined in the IBM Dictionary of Computing, is a "centralized repository of information about data such as meaning, relationships to other data, origin, usage, and format". [1] Oracle defines it as a collection of tables with metadata.
The metadata tables will have zero or more entries and the position of an entry determines its index. When CIL code uses metadata it does so through a metadata token. This is a 32- bit value where the top 8 bits identify the appropriate metadata table, and the remaining 24 bits give the index of the metadata in the table.
Metadatabase is a database model for (1) metadata management, (2) global query of independent databases, and (3) distributed data processing. ... (tables of metadata ...
A schema crosswalk is a table that shows equivalent elements (or "fields") ... When metadata is crosswalked between two or more unrelated sources, there will be data ...
A metadata repository is the database where metadata is stored. The registry also adds relationships with related metadata types. The registry also adds relationships with related metadata types. A metadata engine collects, stores and analyzes information about data and metadata (data about data) in use within a domain.
A database catalog of a database instance consists of metadata in which definitions of database objects such as base tables, views (virtual tables), synonyms, value ranges, indexes, users, and user groups are stored. [1] [2] It is an architecture product that documents the database's content and data quality. [3]