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Everything about Database schema

Visual representation of database system relationships

The database schema is the structure of a database described in a formal language supported typically by a relational database management system (RDBMS). The term "schema" refers to the organization of data as a blueprint of how the database is constructed. The formal definition of a database schema is a set of formulas (sentences) called integrity constraints imposed on a database. These integrity constraints ensure compatibility between parts of the schema. All constraints are expressible in the same language. A database can be considered a structure in realization of the database language. The states of a created conceptual schema are transformed into an explicit mapping, the database schema. This describes how real-world entities are modeled in the database. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Database schemaA 5-minute orientation
  2. Skim a recent paper: Self-tuning Database Systems: A Systematic Literature Review of Automatic Database Schema Design and TuningInfluential work since 2022
  3. Pick up a classic book: Database system conceptsThe most-reprinted book on the subject
  4. Read the landmark paper: Graceful database schema evolutionCited 110 times
  5. Go sideways: Data definition languageA closely related topic
  6. Go sideways: Relational databaseA closely related topic

đź“– Definitions

No dictionary entry for this exact phrase.

🗂️ The subject at a glance

  1. Ideal requirements for schema integration
  2. Example of two schema integrations
  3. Oracle database specificity
  4. Microsoft SQL Server

🏆 Landmark papers (most cited)

🆕 Influential since 2022

đź“š Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

đź”— Related topics