Re: Determine length of numeric field

In Oracle you never have to cast, in Postgres it's pretty common.

See the doc on String Operators and Functions also:
http://www.postgresql.org/docs/8.4/interactive/functions-string.html

On Tue, Feb 15, 2011 at 3:48 PM, Tony Capobianco <tcapobianco(at)prospectiv(dot)com
> wrote:

> I'm altering datatypes in several tables from numeric to integer. In
> doing so, I get the following error:
>
> dw=# \d uniq_hits
> Table "support.uniq_hits"
> Column | Type | Modifiers
> ------------+---------+-----------
> sourceid | numeric |
> hitdate | date |
> total | numeric |
> hitdate_id | integer |
> Indexes:
> "uniq_hits_hitdateid_idx" btree (hitdate_id), tablespace
> "support_idx"
> Tablespace: "support"
>
> esave_dw=# alter table uniq_hits alter sourceid type int;
> ERROR: integer out of range
>
> Sourceid should not be more than 5 digits long. I'm able to perform
> this query on Oracle and would like something similar on postgres 8.4:
>
> delete from uniq_hits where sourceid in (select sourceid from uniq_hits
> where length(sourceid) > 5);
>
> I haven't had much luck with the length or char_length functions on
> postgres.
>
> Thanks.
> Tony
>
>
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--
Peter Steinheuser
psteinheuser(at)myyearbook(dot)com