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From "Veena Basavaraj (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SQOOP-1810) GenericJdbcConnector : ToJobConfiguration and Loader enhancements for Incremental write ( INSERT or UPDATE)
Date Wed, 25 Mar 2015 17:18:54 GMT

    [ https://issues.apache.org/jira/browse/SQOOP-1810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14380275#comment-14380275
] 

Veena Basavaraj commented on SQOOP-1810:
----------------------------------------

My assumption was "http://en.wikipedia.org/wiki/Merge_%28SQL%29" is a standard and we can
use that, when I said select and insert / update, that was bare bones semantic interpretation
not a literal one:)

I looked at using merge and it seems  to be a standard statement supported  in some:
Database management systems Oracle Database, DB2, Teradata, EXASOL, CUBRID, MS SQL and Vectorwise
support the standard syntax. Some also add non-standard SQL extensions. So if it is not worth
these use cases, I can drop it too. Not a problem, since the user can use free form sql for
such operations.


> GenericJdbcConnector : ToJobConfiguration and Loader enhancements for Incremental write
( INSERT or UPDATE)
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: SQOOP-1810
>                 URL: https://issues.apache.org/jira/browse/SQOOP-1810
>             Project: Sqoop
>          Issue Type: Bug
>            Reporter: Veena Basavaraj
>            Assignee: Veena Basavaraj
>             Fix For: 2.0.0
>
>
> This feature is a POC to make JDBC Connector support Incremental/Delta read and writes



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