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Language peer sets for UDL:
United States
United States/1980
Designed 1980
1980s languages
Fourth generation
Late Cold War


Unified Data Language 

alternate simple view
Country: United States
Designed 1980

Date's Unified Data Language

Related languages
DBTG UDL   Revulsion Strong Influence
SQL UDL   Negative Mild Influence

  • SHARE DBMS Language Task Force. (1979) SHARE DBMS Language Task Force. "An Evaluation of Three COBOL Data Base Languages -- UDL, SQL, and CODASYL." Proc. SHARE 53 (August 1979).
  • Date, C. J. (1980) Date, C. J. "An introduction to the unified data language UDL" Proceedings 6th International Conference on VLDB (Montreal, 1980), 15-32.
  • Date, C. J. (1984) Date, C. J. "Some principles of good language design: with especial reference to the design of database languages" ACM SIGMOD Record 14(3) November 1984 pp1-7 DOI
  • Subieta, Kazimierz (1985) Subieta, Kazimierz "Semantics of query languages for network databases" Abstract
          in (1985) Transactions on Data Systems 10(3) Sept 1985
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