|
gptkbp:instanceOf
|
relational database management system
|
|
gptkbp:basedOn
|
relational model
|
|
gptkbp:category
|
relational database management system
IBM software
experimental software
|
|
gptkbp:constructionStartYear
|
1974
|
|
gptkbp:countryOfOrigin
|
gptkb:IBM_San_Jose_Research_Laboratory
|
|
gptkbp:developedBy
|
gptkb:IBM
|
|
gptkbp:developmentEndYear
|
1979
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
System R database system
|
|
gptkbp:influenced
|
gptkb:Oracle_Database
gptkb:Ingres
gptkb:PostgreSQL
gptkb:IBM_DB2
SQL
|
|
gptkbp:language
|
gptkb:SEQUEL
SQL
|
|
gptkbp:legacy
|
foundation for modern RDBMS
influenced commercial database systems
|
|
gptkbp:notableFeature
|
gptkb:relational_calculus
transaction management
concurrency control
modular architecture
data independence
relational algebra
cost-based query optimizer
implementation of SQL
recovery management
separation of logical and physical data
system catalog
|
|
gptkbp:notablePerson
|
gptkb:Donald_D._Chamberlin
gptkb:Raymond_F._Boyce
gptkb:Jim_Gray
gptkb:Frank_King
gptkb:Morton_Astrahan
gptkb:Patricia_Selinger
|
|
gptkbp:notableProject
|
gptkb:Donald_D._Chamberlin
gptkb:Raymond_F._Boyce
|
|
gptkbp:notablePublication
|
gptkb:Access_Path_Selection_in_a_Relational_Database_Management_System
gptkb:SEQUEL:_A_Structured_English_Query_Language
gptkb:System_R:_Relational_Approach_to_Database_Management
gptkb:The_Implementation_of_the_System_R_Relational_Database_Management_System
|
|
gptkbp:operatingSystem
|
gptkb:VM/370
gptkb:IBM_System/370
gptkb:MVS
|
|
gptkbp:purpose
|
demonstrate feasibility of relational databases
develop a prototype for research
evaluate performance of relational model
|
|
gptkbp:status
|
discontinued
|
|
gptkbp:type
|
gptkb:prototype
|
|
gptkbp:bfsParent
|
gptkb:IBM_System_R_project
|
|
gptkbp:bfsLayer
|
6
|