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Sqoop, mail # user - Sqoop from/to Oracle


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RE: Sqoop from/to Oracle
Martin, Nick 2013-10-30, 00:32
Weird...let me re-test and if it fails again I'll include some sample data and the error output.

Thanks for the help Abe!

From: Abraham Elmahrek [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 29, 2013 7:06 PM
To: [EMAIL PROTECTED]
Subject: Re: Sqoop from/to Oracle

Nick,

I haven't tested this, but Sqoop should accept full timestamps when exporting into DATE columns. If the data you're exporting has a full timestamp (as it should after import), then the export job should just work.

-Abe

On Mon, Oct 28, 2013 at 9:55 AM, Martin, Nick <[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>> wrote:
Hi Abe,

After doing some digging on this issue I've found I'm facing what seems like a fairly common issue with importing data from an Oracle DATE column and trying to export that same data (from HDFS) back into an Oracle DATE column (of course, it will have been converted to a timestamp on the way into HDFS).

So, what's the current thinking on the best way to get around this issue?

Thanks,
Nick

From: Abraham Elmahrek [mailto:[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>]
Sent: Tuesday, October 01, 2013 7:31 PM

To: [EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>
Subject: Re: Sqoop from/to Oracle

Nick,

It looks like Sqoop believes the format of the timestamps are incorrect. Could you please inspect the data you are attempting to import and verify the columns are aligned and the data is correctly formatted? I believe if you use the --verbose option, Sqoop will give more details in its own logs and the tasks logs. Can you post the task logs back here?

Some other information that might be helpful to us is an example of the data you're trying to export and the schema of the table you're importing to.

-Abe

On Tue, Oct 1, 2013 at 4:11 PM, Martin, Nick <[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>> wrote:
Hi Abe,

Just checking in to see if you had any suggestions for me to try?

Thanks again,
Nick

Sent from my iPhone

On Sep 30, 2013, at 6:36 PM, "Abraham Elmahrek" <[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>> wrote:
Nick,

What is the exact command you are using and the exact error you are seeing? Also, what version of sqoop are you using?

-Abe

On Mon, Sep 30, 2013 at 3:32 PM, Martin, Nick <[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>> wrote:
Hi all,

I have a table I've imported from Oracle into HDFS and now I want to export it into an Oracle Db (import and export table schemas are identical).

My initial attempt at exporting from HDFS (using Sqoop) to Oracle failed (data types failures). So, my question is what's the best way for me to accomplish this? My source table is a mixture of NUMBER, VARCHAR, DATE fields. Am I better off importing into a Hive table I define and then exporting into Oracle from there? Or do I just need to do some export formatting in my Sqoop export statement?

Any other intel you'd need to make a recommendation?

Thanks in advance,
Nick

Sent from my iPhone