From: Scott Marlowe <smarlowe@g2switchworks.com>
To: Juliann Meyer <Julie.Meyer@noaa.gov>
Cc: pgsql-sql@postgresql.org
Subject: Re: how do I check for lower case
Date: Thu, 10 Aug 2006 16:57:58 -0500
Message-ID: <1155247078.20252.172.camel@state.g2switchworks.com> (raw)
In-Reply-To: <44DB97C5.9090307@noaa.gov>
References: <44DB97C5.9090307@noaa.gov>
On Thu, 2006-08-10 at 15:32, Juliann Meyer wrote:
> I have a table with a column, lets call it identifier, that is defined
> as varchar(8) that should never contain lower case letters. Its a large
> table. Is there a way to query the table to see if any values in this
> column are lower case and to get a list out? The user interface
> application that users use prevents them from adding an entry in lower
> case now, but didn't in earlier version.
You can also use the same upper / lower functions to make sure no lower
case stuff gets into the table at a later date:
test=> create table aaa (a text check (upper(a)=a));
CREATE TABLE
test=> insert into aaa (a) values ('ABC');
INSERT 2120799293 1
test=> insert into aaa (a) values ('ABC123');
INSERT 2120799294 1
test=> insert into aaa (a) values ('ABC12a3');
ERROR: new row for relation "aaa" violates check constraint "aaa_a"
viola!
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To: pgsql-sql@postgresql.org
Cc: smarlowe@g2switchworks.com, Julie.Meyer@noaa.gov
Subject: Re: how do I check for lower case
In-Reply-To: <1155247078.20252.172.camel@state.g2switchworks.com>
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