Hi Raviprasad,
What you can do, if deptno is you key, or the first part of you key,
is to scan for the first entry, then increment it by one and scan with
this value.
Let's take an example.
Key format is DEPTNO + ID (XXYY)
You table content is:
0101
0102
0106
0207
0212
0243
0419
0441
If you sca
Hi
Your schema? 'deptno' is a cf:qualifier?
-Anoop-
From: raviprasa...@polarisft.com [raviprasa...@polarisft.com]
Sent: Wednesday, October 10, 2012 4:29 PM
To: user@hbase.apache.org; hbase-u...@hadoop.apache.org
Subject: HBase table - distinct values
Hi
Typically this is something done as a MapReduce job.
http://hbase.apache.org/book.html#mapreduce.example
7.2.4. HBase MapReduce Summary to HBase Example
However, if this is an operation to be performed frequently by an
application then doing frequent MapReduce jobs for summaries probably
isn'
From: Anoop Sam John
Date: 10/10/2012 06:18PM
Subject: RE: HBase table - distinct values
Hi
Your schema? 'deptno' is a cf:qualifier?
-Anoop-
From: raviprasa...@polarisft.com [raviprasa...@polarisft.com]
Sent: Wednesday, October 10, 2012 4:29 PM
To
e you asked about. :)
-Anoop-
From: raviprasa...@polarisft.com [raviprasa...@polarisft.com]
Sent: Wednesday, October 10, 2012 7:51 PM
To: user@hbase.apache.org
Cc: hbase-u...@hadoop.apache.org; user@hbase.apache.org
Subject: RE: HBase table - distinct value
ei.com]
> Sent: Thursday, October 11, 2012 9:32 AM
> To: user@hbase.apache.org
> Cc: hbase-u...@hadoop.apache.org
> Subject: RE: HBase table - distinct values
>
> Hi Ravi
> If dept_no is a CF:qualifier, to know all the dept numbers
> (distinct or not) you need a full
> Sent: Thursday, October 11, 2012 9:32 AM
> > To: user@hbase.apache.org
> > Cc: hbase-u...@hadoop.apache.org
> > Subject: RE: HBase table - distinct values
> >
> > Hi Ravi
> > If dept_no is a CF:qualifier, to know all the dept numbers
> > (distinc
.
Thanks
Regards
Raviprasad. T
Mobile :- 91- 9894769541
-Anoop Sam John wrote: -
To: "user@hbase.apache.org"
From: Anoop Sam John
Date: 10/11/2012 09:33AM
Cc: "hbase-u...@hadoop.apache.org"
Subject: RE: HBase table - distinct values
Hi Ravi
If dept_no i
nct deptno .
>
> Thanks
> Regards
> Raviprasad. T
> Mobile :- 91- 9894769541
>
>
> -Anoop Sam John wrote: -
> To: "user@hbase.apache.org"
> From: Anoop Sam John
> Date: 10/11/2012 09:33AM
> Cc: "hbase-u...@hadoop.apache.org"
> Subject: RE
