EntityQ632285· pop 21· linked from 178 articlesdatabase schemaSign in to savevisual representation of database system relationshipsConnectionsdatabaseEntityrelational databaseEntitydata integrityEntityOracle DatabaseEntityquery languageEntityInternational Standard Book NumberEntityQ83EntityQ47607Entitydigital object identifierEntitysequenceEntityformal languageEntitydata typeEntityfree and open-source softwareEntitysubroutineEntityqueueEntitydirectoryEntityMicrosoft SQL ServerEntitymathematical objectEntityentity-relationship modelEntityQ22908627EntityCategoriesData managementData modelingRelational model