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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-5516) Document the fact that attributes on the connection URL trump attributes specified in a connection Properties object.
Date Tue, 24 Apr 2012 19:15:33 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13260847#comment-13260847
] 

Rick Hillegas commented on DERBY-5516:
--------------------------------------

Thanks, Kim. These changes look good to me. +1
                
> Document the fact that attributes on the connection URL trump attributes specified in
a connection Properties object.
> ---------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-5516
>                 URL: https://issues.apache.org/jira/browse/DERBY-5516
>             Project: Derby
>          Issue Type: Improvement
>          Components: Documentation, JDBC
>    Affects Versions: 10.9.0.0
>            Reporter: Rick Hillegas
>            Assignee: Kim Haase
>         Attachments: DERBY-5516.diff, DERBY-5516.stat, DERBY-5516.zip
>
>
> Attributes for a Derby connection can be set via semicolon-separated lists on the connection
url as well as in a Properties object passed to the java.sql.DriverManager.getConnection()
and java.sql.Driver.connect() methods. The JDBC spec does not indicate what should happen
if an attribute is specified both on the connection url and in the Properties object. For
some databases, like Derby, the attributes on the connection url trump the attributes in the
Properties object. For other databases, like MySQL, the reverse is true.
> Because the JDBC spec does not dictate standard behavior here, we should document what
Derby does. This information would be useful in some or all of the following sections:
> Reference Manual:
>   Setting attributes for the database connection URL
>   Attributes of the Derby database connection URL
>   java.sql.Driver interface
>   java.sql.DriverManager.getConnection method
> Developer's Guide:
>   Working with the database connection URL attributes
>   Specifying attributes in a properties object

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