From: | ginkgo36 <ginkgo56(at)gmail(dot)com> |
---|---|
To: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: String reverse funtion? |
Date: | 2013-10-10 01:53:22 |
Message-ID: | 1381370002527-5773950.post@n5.nabble.com |
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Thread: | |
Lists: | pgsql-general |
Thanks alot everyone,
Actually, I just start learning about Programming language. So, each your
solution is a good suggestion for me to learning. Thanks so much.
Please help me one User-defined Functions to solves this when my data like
this:
EA;BX;CA
CA;EA
BX;EA
And when run UDFs, output is:
CA;BX;EA
EA;CA
EA;BX
One again, thanks so much
Pavel Stehule wrote
>> Based upon the example, it's probably very easy to use a split/explode in
>> your language of choice (VB.NET, perl, python, etc).
>
>
> or SQL
>
> select string_agg(u, ';' order by r desc)
> from (select row_number() over () r, u
> from unnest(string_to_array('EA;BX;CA',';')) u) x;
> string_agg
> ────────────
> CA;BX;EA
> (1 row)
>
> Regards
>
> Pavel
>
>
>>
>>
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