The Third Manifesto

The Third Manifesto (1995) is Christopher J. Date's and Hugh Darwen's proposal for future relational database management systems that would avoid 'Object-Relational Impedance Mismatch' between object-oriented programming languages and RDBMSs by fully supporting all the capabilities of the relational model.

The Third Manifesto describes a simple, restricted and precise definition of the role of object orientation in database management systems emphasizing the few valid ideas from object modeling that are orthogonal to relational modeling. One of the major tasks has been to illustrate ways in which SQL represents an inadequate reflection of the relational model.

It illustrates the relational model using their own database language, Tutorial D, for which there are several partial implementations, including:

* [http://www.alphora.com/ Alphora] Dataphor, an open source product which implements the language atop SQL databases.
* Rel, an Open Source implementation in Java.
* Muldis Rosetta (Muldis D), a FOSS implementation in Perl

Tutorial D is the example instantiation of a "D" which is the set of requirements for a language defined by the 3rd Manifesto. There is at least one other (currently partial) "D" implementation [http://search.cpan.org/dist/Muldis-D/ Muldis D] and a DBMS implementation of it in the Perl language [http://search.cpan.org/dist/Muldis-Rosetta/ Muldis Rosetta] .

ee also

*Tutorial D
*Christopher J. Date
*Hugh Darwen

Bibliography

*cite journal
last =Darwen
first =Hugh
authorlink =
coauthors =Date, C. J.
date=
month=March
year =1995
title =The third manifesto
journal =ACM SIGMOD Record
volume =24
issue =1
pages =39–49
publisher =ACM Press
location=New York, NY, USA
issn=0163-5808
url =http://acm.org/sigmod/record/issues/9503/manifesto.ps
language=
format=
doi =10.1145/202660.202667
id =
accessdate =
laysummary =
laysource =
laydate =

*cite journal
quotes =
last = Date
first = C. J.
authorlink =
coauthors =
date =
year = 1998
month = August
title = Preview of The Third Manifesto
journal = Database Programming & Design
publisher =Miller Freeman Publications
location=San Francisco, CA
volume = 11
issue = 8
pages = 67
issn = 0895-4518
doi =
id = OCLC|89297479
url = http://www.dbpd.com/vault/9808date.html
language =
format =
accessdate = 2007-06-18
laysummary =
laysource =
laydate =
quote =

*cite book |last= Date |first=C. J. |authorlink= |coauthors= Darwen, Hugh |editor= |others= |title=Foundation for object/relational databases: the third manifesto: a detailed study of the impact of objects and type theory on the relational model of data including a comprehensive proposal for type inheritance |origdate= |origyear= |origmonth= |url= |format= |accessdate= |accessyear= |accessmonth= |edition=1st edition |series= |date= |year=1998 |month= |publisher=Addison-Wesley |location= Reading, MA |language= |isbn= 0-201-30978-5 |oclc=38431501 |doi= |id= LCCN|98|0|10364 LCC| QA76.9.D3 D15994 1998 |pages= xxi, 496 |chapter= |chapterurl= |quote=

*cite book |last= Date |first=C. J. |authorlink= |coauthors= Darwen, Hugh |editor= |others= |title=Foundation for future database systems: the third manifesto: a detailed study of the impact of type theory on the relational model of data, including a comprehensive model of type inheritance |origdate= |origyear= |origmonth= |url= |format= |accessdate= |accessyear= |accessmonth= |edition=2nd edition |series= |date= |year=2000 |month= |publisher=Addison-Wesley Professional |location= Reading, MA |language= |isbn= 0-201-70928-7 |oclc=43662285 |doi= |id= LCCN|00|0|35527 LCC|QA76.9.D3 D3683 2000 |pages= xxiii, 547 |chapter= |chapterurl= |quote=

*cite book |last= Date |first=C. J. |authorlink= |coauthors= Darwen, Hugh |editor= |others= |title=Databases, types and the relational model: the third manifesto |origdate= |origyear= |origmonth= |url= |format= |accessdate= |accessyear= |accessmonth= |edition=3rd edition |series= |date= |year=2006 |month= |publisher=Addison-Wesley |location= Reading, MA |language= |isbn= 0-321-39942-0 |oclc=70044091 |doi= |id= |pages= 572 |chapter= |chapterurl= |quote=

External links

It has been published as a [http://www.acm.org/sigmod/record/issues/9503/manifesto.ps paper] and as two different editions of the same book ISBN 0-201-70928-7, with http://www.thethirdmanifesto.com/ holding errata and related materials.

A third revision of the book was published in 2006; it has been retitled "Databases, Types and the Relational Model, 3/E" (ISBN 0-321-39942-0).