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From qiang tian <tian...@gmail.com>
Subject Re: Oracle rowid VS hbase rowkey
Date Sat, 17 May 2014 10:03:34 GMT
Mu,
I think rowid is metadata in RDBMS storage engine and it is not related to
user data. but in hbase rowkey usually contains user data as a purpose of
primary index in rdbms.(http://hbase.apache.org/book.html#rowkey.design)
there is more explanation in google's bigtable paper.



On Fri, May 16, 2014 at 12:21 AM, Ted Yu <yuzhihong@gmail.com> wrote:

> I looked at
> http://docs.oracle.com/cd/B19306_01/server.102/b14200/pseudocolumns008.htm
>
> ROWID contains more information than rowkey in HBase does.
>
> You can refer to:
> http://hbase.apache.org/book.html#row
>
> Cheers
>
>
> On Thu, May 8, 2014 at 2:12 AM, mu yu <win.acc@gmail.com> wrote:
>
> > Hey,everyone.Got a question when i designing the hbase rowkey .
> > It's the known ROWID is the record 'phyical address 'that orace access
> > which
> > is unique and direct access.
> > Does the Rowkey in hbase work  the same ?
> >
> > I didn't go the answer from google or habase site.
> > Any reply are appreciate,thanks in advance .
> >
>

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