SQL - Catalog

Data System Architecture

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A catalog is a named collection of:

  • SQL-schemas,
  • foreign server descriptors,
  • and foreign data wrapper descriptors




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Data System Architecture
SQL - Schema (Metadata)

A SQL schema is two things: It'is a persistent, named collection of metadata (known as information_schema) that defines a schema a scope because a schema is part of the object identifier. A SQL Schema...



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