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From "Olga Tkachova (JIRA)" <j...@apache.org>
Subject [jira] Updated: (CAY-289) Implement Quoting of identifiers
Date Fri, 10 Apr 2009 12:04:15 GMT

     [ https://issues.apache.org/jira/browse/CAY-289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Olga Tkachova updated CAY-289:
------------------------------

    Attachment: ErrorInOracle.txt

> Implement Quoting of identifiers
> --------------------------------
>
>                 Key: CAY-289
>                 URL: https://issues.apache.org/jira/browse/CAY-289
>             Project: Cayenne
>          Issue Type: Improvement
>          Components: Cayenne Core Library
>    Affects Versions: 3.0M5
>         Environment: Linux, Sun JDK1.5, MS SQL Server 2000, jtds-1.0, Croatian locale
>            Reporter: Tomislav Nakic-Alfirevic
>            Assignee: Andrus Adamchik
>             Fix For: 3.0M6
>
>         Attachments: diffQuoteSqlIdentifiers.txt, ErrorInOracle.txt, forWorkTrim.txt,
h2Faild.txt, InsertUpdateDelete.txt, InsertUpdateDeleteSelect.txt, InsertUpdateDeleteSelect.txt,
migratePatch.txt, patchForH2.txt, postgres.txt, postgres.txt, SelectTranslatorTest.txt
>
>
> Say a table "t0" has an attribute "my attrib 0".
> You correct the obj-attribute to, for instance, "my_attrib_0", but the db-attribute is
still "my attrib 0".
> When you try to run a query on "t0", the generated query looks like:
> SELECT ..., t0.my attrib 0, ... FROM dbo.t0 AS t0
> This, obviously, can't possibly work.
> The correct SQL would be:
> SELECT ..., t0.[my attrib 0], ... FROM dbo.[t0] AS t0
> Notice the square brackets arround the attributes and table names: that makes the string
a valid attribute or table name valid.
> A further improvement might be to add the database name:
> SELECT ..., t0.[my attrib 0], ... FROM [dbname].dbo.[t0] AS t0
> I mention it because I use the quantum plugin as a database access plugin and it complained
about a table called "dbo.tablename" (as I believe it should) and all was well when I used
mydbname.dbo.tablename.

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