Oracle-L: RE: Is range partitioning possible on part of varchar2 column ???

From: DENNIS WILLIAMS <DWILLIAMS_at_LIFETOUCH.COM>
Date: Thu, 13 Mar 2003 14:19:01 -0800
Message-ID: <F001.00569A2E.20030313141901@fatcity.com>

Babu
I don't think partitions are clearly documented anywhere. Here is some SQL that works so you can see how to use a date function. It partitions on two columns, but I wanted you to see something that works.

add partition sum_fy_28

        values less than ('FY', to_date('02012003','mmddyyyy'))
        tablespace data_fy_28

-----Original Message-----
Sent: Thursday, March 13, 2003 3:14 PM
To: Multiple recipients of list ORACLE-L ??????

Dear List,

I have a table of size approx 10gig, and I need to partition based on the YEAR. I have column in the table, REPORT_CYCLE_CD with VARCHAR2(7). The data in the column of format "MONYYYY" . I need to partition the table based on the year YYYY, that is, substr(report_cycle_cd, 4,4).

Substr function doesn't seem to be permitted in the partitioning syntax and so am getting errors. Only TO_DATE function seems to be permitted. Since it is not a date column, I would like to know if there is a way to RANGE partition the table, instead of HASH partitioning.

Appreciate any suggestions.

Thanks,
-- Babu
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Author: Janardhana Babu Donga
INET: jbdonga_at_ucdavis.edu

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Author: DENNIS WILLIAMS
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