Ezequias Rodrigues da Rocha wrote:
Hil list,
I have a query but my IDE (Delphi) does not accept "to_char"
capability. Is there a way to reproduce the same query without using
to_char function ?
Here is my query:
SELECT to_char(quando,'dd/MM/yyyy HH24:MI'),count(id)
FROM base.tentativa
WHERE (SESSAO_ID = 15)
GROUP BY to_char(quando,'dd/MM/yyyy HH24:MI')
order by 1
That seems like a valid query in Oracle :-)
Postgres have a slightly different mechanism for handling date and
time. The modified query:
SELECT date_trunc('minute', quando),count(id)
FROM base.tentativa
WHERE (SESSAO_ID = 15)
-- GROUP BY to_char(quando,'dd/MM/yyyy HH24:MI')
GROUP BY date_trunc('minute', quando)
order by 1
You should read:
http://www.postgresql.org/docs/8.1/interactive/functions-datetime.html
Zizi