Re: count question

Volkan YAZICI wrote:
> On Wed, 9 Apr 2008, novice <user(dot)postgresql(at)gmail(dot)com> writes:
>
>> Is it possible to write a query to produce:
>>
>> meter_id | no_of_bays | bay_id
>> ----------+------------+-----------
>> 5397 | 2 | 5397-01
>> 5397 | 2 | 5397-02
>> 5409 | 3 | 5409-01
>> 5409 | 3 | 5409-02
>> 5409 | 3 | 5409-03
>>
>
> Shouldn't this function be the responsitibility of client software,
> instead of database?
>
>
> Regards.
>

May be this will help you

ashish=# select
meter_id,no_of_bays,meter_id||'-'||generate_series(1,no_of_bays) from meter;
meter_id | no_of_bays | ?column?
----------+------------+----------
5397 | 2 | 5397-1
5397 | 2 | 5397-2
5409 | 3 | 5409-1
5409 | 3 | 5409-2
5409 | 3 | 5409-3

With Regards
Ashish

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