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From "Patrick Linskey" <plins...@bea.com>
Subject RE: [jira] Updated: (OPENJPA-84) Escape sql reserved words in column names
Date Thu, 01 Mar 2007 19:55:58 GMT
> Can you ask OpenJPA to quote ALL identifiers for a particular
> data source?

Not currently, but certainly would be useful once we add quoting
support.

> You might have an identifier (with some databases) that is 
> declared as "a", but if you access it without quotes in a query
> it will be auto-uppercased to A and won't match.

You can tell OpenJPA whether or not the database is case-sensitive. This
is configured in the DBDictionary, and can be fine-tuned by the user.
IOW, you can control whether or not OpenJPA auto-uppercases things.

-Patrick

-- 
Patrick Linskey
BEA Systems, Inc. 

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> -----Original Message-----
> From: Evan Ireland [mailto:eireland@sybase.com] 
> Sent: Thursday, March 01, 2007 11:32 AM
> To: open-jpa-dev@incubator.apache.org
> Subject: RE: [jira] Updated: (OPENJPA-84) Escape sql reserved 
> words in column names
> 
> Patrick,
> 
> Can you ask OpenJPA to quote ALL identifiers for a particular
> data source?
> 
> You might have an identifier (with some databases) that is 
> declared as "a", but if you access it without quotes in a query
> it will be auto-uppercased to A and won't match.
> 
> Rather than a special case for SQL reserved words, the ability
> to quote all identifiers or quote none is generally more useful.
> 
> > -----Original Message-----
> > From: Patrick Linskey (JIRA) [mailto:jira@apache.org] 
> > Sent: Thursday, 1 March 2007 2:19 p.m.
> > To: open-jpa-dev@incubator.apache.org
> > Subject: [jira] Updated: (OPENJPA-84) Escape sql reserved 
> > words in column names
> > 
> > 
> >      [ 
> > https://issues.apache.org/jira/browse/OPENJPA-84?page=com.atla
> > ssian.jira.plugin.system.issuetabpanels:all-tabpanel ]
> > 
> > Patrick Linskey updated OPENJPA-84:
> > -----------------------------------
> > 
> >     Fix Version/s: 1.0.0
> > 
> > > Escape sql reserved words in column names
> > > -----------------------------------------
> > >
> > >                 Key: OPENJPA-84
> > >                 URL: 
> > https://issues.apache.org/jira/browse/OPENJPA-84
> > >             Project: OpenJPA
> > >          Issue Type: Improvement
> > >          Components: sql
> > >            Reporter: Roger Keays
> > >             Fix For: 1.0.0
> > >
> > >
> > > OpenJPA does not escape reserved words in SQL queries when 
> > they are used as column names. To escape a reserved name you 
> > just put it in quotes:
> > > INSERT INTO FB_PRIVILEGES (comment, inheritable, level, 
> > role, type, username, item_uuid) ...
> > > on oracle, becomes
> > > INSERT INTO FB_PRIVILEGES ("comment", inheritable, "level", 
> > role, "type", username, item_uuid) ...
> > > Looking at the code in DBDictionary, it appears that the 
> > escaping is done for table and sequence names by appending a 
> > numeral to the name. There isn't really any good reason to do 
> > this instead of quoting the identifier.
> > > table.name identifiers would have to be escaped as 
> > "table"."name" if both table and name were reserved words.
> > 
> > --
> > This message is automatically generated by JIRA.
> > -
> > You can reply to this email to add a comment to the issue online.
> > 
> > 
> 
> 

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