- relational check
- sprawdzenie relacji
English-Polish dictionary for engineers. 2013.
relational check
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Relational database — A visual diagram showing the relationship between the two tables, as indicated by the arrow A relational database matches data by using common characteristics found within the data set. The resulting groups of data uses the relational model (a… … Wikipedia
Relational model — The relational model for database management is a database model based on first order predicate logic, first formulated and proposed in 1969 by Edgar Codd. [ Derivability, Redundancy, and Consistency of Relations Stored in Large Data Banks , E.F … Wikipedia
Check Constraint — A check constraint (also known as table check constraint) is a condition that defines valid data when adding or updating an entry in a table of a relational database. A check constraint is applied to each row in the table. The constraint must be… … Wikipedia
Comparison of relational database management systems — Programming language comparisons General comparison Basic syntax Basic instructions Arrays Associative arrays String operations … Wikipedia
Life cycle of a relational database — The life cycle of a relational database is the cycle of development and changes that a database goes through during the course of its life. The cycle typically consists of several stages. There is possibility that the database designer/developer… … Wikipedia
Null (SQL) — The Greek lowercase omega (ω) character is used to represent Null in database theory. Null is a special marker used in Structured Query Language (SQL) to indicate that a data value does not exist in the database. Introduced by the creator of the… … Wikipedia
Oracle Database — Developer(s) Oracle Corporation Development status Active Written in … Wikipedia
Object-Role Modeling — Not to be confused with Object relational mapping. Example of the application of Object Role Modeling in a Schema for Geologic Surface , Stephen M. Richard (1999).[1] Object Role Modeling (ORM) is a method for conceptual modeling, and can be used … Wikipedia
Database — A database is an organized collection of data for one or more purposes, usually in digital form. The data are typically organized to model relevant aspects of reality (for example, the availability of rooms in hotels), in a way that supports… … Wikipedia
Object role modeling — Not to be confused with Object relational mapping. [ Stephen M. Richard (1999). [http://pubs.usgs.gov/of/1999/of99 386/richard.html Geologic Concept Modeling] . U.S. Geological Survey Open File Report 99 386.] ] Object Role Modeling (ORM) in the… … Wikipedia
Ingres (database) — Ingres Ingres Corporation logo Developer(s) Actian Corporation Stable release Ingres Database 10 / October 12, 2010; 13 months ago (2010 10 12) … Wikipedia
