Re: [HACKERS] "DML"
От | Hannu Krosing |
---|---|
Тема | Re: [HACKERS] "DML" |
Дата | |
Msg-id | 376235FF.9D827C5F@trust.ee обсуждение исходный текст |
Ответ на | Re: [HACKERS] "DML" (Thomas Good <tomg@nrnet.org>) |
Ответы |
Re: [HACKERS] "DML"
|
Список | pgsql-hackers |
Thomas Good wrote: > > > OK, in the DML, DCL, and DDL decomposition of things, just what > > *is* a select statement? > > Hee hee...according to Guy Harrison who wrote 'Oracle SQL High > Performance Tuning' (a great book) SELECT is NOT part of DML. > > It is a QUERY. > Harrison separates SELECT from DML because it does not alter data. But what would you call yer query when the tables have rules/triggers attached that do alter data ? A DML-savvy QUERY ;) BTW, where do all the triggers and rules fall anyway, or ar they a different subset - maybe Data Behaviour Language (DBL) > Is this getting murkier or do I really need some coffee? Maybe next we should try to divide english into sublanguages ?English for Order Giving - EOGEnglish for Describing Things- EDTEnglisg for Discussing SQL Sublanguages - EDSQLL ------------------ Hannu
В списке pgsql-hackers по дате отправления: