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From Rocks <nutchmaill...@gmail.com>
Subject Re: Hi, i am still puzzeld to find a row key by a cell.
Date Mon, 17 Aug 2009 15:55:58 GMT
Thanks for you answer.
however, what i want to do just likes "where" keyword of SQL in RDBMS. Is
it impossible in hbase ?

On Mon, Aug 17, 2009 at 2:58 PM, Ryan Rawson <ryanobjc@gmail.com> wrote:

> hey,
>
> That isn't how hbase (or even rdbms) work.  Instead you can retrieve
> rows based on their row key. Otherwise you will have to read the
> entire table to find just that 1 row. Yes this is as inefficient as it
> sounds.
>
> If you frequently have this issue, you may need to build and maintain
> secondary indexes. Unlike relational dbs, there is no built in support
> for this, you have to write your app to handle this.
>
> -yran
>
>
>
> On Sun, Aug 16, 2009 at 11:51 PM, lei wang<hbasemaillist@gmail.com> wrote:
> > Hi, if a know a cell in a hbase for its column:<qualifer>:value,  i need
> to
> > know which row key it belongs to. I searched the HBase api several times,
> > but i can not find the right method to solve my problem. Thanks for one's
> > suggestion to me.
> >
>

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