ISSUE-49: SQL terminology in R2RML

sql-terminology

SQL terminology in R2RML

State:

POSTPONED

Product:

R2RML

Raised by:

Richard Cyganiak

Opened on:

2011-07-06

Description:

R2RML uses a lot of SQL terminology, including “SELECT list”, “derived columns”, “character string type”, “data type”, “data value” and so on. Most of them are used without an explicit definition. It is simply hoped that the reader knows what is meant.

The formal definition of SQL is found in ISO/IEC 9075. The precise terms used there often differ from those used in R2RML. Looking up the precise terms is a quite laborious process. Very few people on the WG has access to the expensive ISO specs, so it's hard to scale up the process. It's also questionable how useful references to ISO/IEC 9075 really are, because most readers of R2RML won't have access to it either.

One solution might be to include an informative section that recaps SQL terminology. It could reference the ISO spec and give short semi-formal definitions of the terms needed to specify R2RML.

Related Actions Items:

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Related emails:

1. Re: Process: ISSUE-61 (translation schemes) and ISSUE-49 (SQL terminology) (from michael.hausenblas@deri.org on 2011-08-26)
2. Process: ISSUE-61 (translation schemes) and ISSUE-49 (SQL terminology) (from richard@cyganiak.de on 2011-08-26)
3. Re: Status of the R2RML document and going last call (from michael.hausenblas@deri.org on 2011-08-02)
4. Status of the R2RML document and going last call (from richard@cyganiak.de on 2011-08-02)
5. Re: More edits on the R2RML spec, incl. ISSUE-47 (from ashok.malhotra@oracle.com on 2011-07-22)
6. More edits on the R2RML spec, incl. ISSUE-47 (from richard@cyganiak.de on 2011-07-22)
7. Re: RDB2RDF WG agenda for 2011-07-19 meeting 1600 UTC (from juanfederico@gmail.com on 2011-07-19)
8. Re: RDB2RDF WG agenda for 2011-07-19 meeting 1600 UTC (from seema.sundara@oracle.com on 2011-07-19)
9. Re: RDB2RDF WG agenda for 2011-07-19 meeting 1600 UTC (from marcelo.arenas1@gmail.com on 2011-07-19)
10. RDB2RDF WG agenda for 2011-07-19 meeting 1600 UTC (from michael.hausenblas@deri.org on 2011-07-19)
11. ISSUE-49 (sql-terminology): SQL terminology in R2RML [R2RML] (from sysbot+tracker@w3.org on 2011-07-06)

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