Actually, PostgreSQL has specific function for this purpose. The query would
be:
SELECT * FROM table WHERE date_part('month', date_field) = '8';
(example to select month 8)
If you use date_trunc, the selection will be by month/year - that is,
date_trunc('month', date_field) will always result
Dear all,
Is postgresql supporting recursive sql? If no, how can my sql to change for
recursive function ( on 4 or 5 levels are needed ) ?
Many thanks!
Best regards,
Boris
Doesn't seem like a bad idea. I did find a better workaround, though -
cond:=TG_OP=''INSERT'';
IF cond=FALSE THEN
cond:=NEW.ip!=OLD.ip;
END IF;
IF cond=TRUE ...
so it won't kill me. Anyway, I've been totally impressed with the 7.0 release.
I'm building the EPA IP address registration sys
Alexaki Sofia <[EMAIL PROTECTED]> writes:
> I can either define the field id as a Primary Key or create an Btree index
> on it. What is more effient??
> From my test I see that creating Btree index is a bit faster!!.
I think you're seeing things. Declaring a field primary key creates
a btre
This might seem rather silly, but could you simply do something like:
select * from database
where date_field >= '01/01/2000'::date
and date_field < '02/01/2000'::date;
Of course, if date_field could contain many different years, then this
would not get you the result you wanted.
Hello,
I have the following tables in my db
Painter (id integer, uri varchar(256)) and
paints (id1 integer, id2 integer)
I want to optimize the question
select id from Painter where uri = 'x';
What kind of index (Btree or Hash) is more efficient to create on field
uri since it'
Hi,
I have trigger function with the statement:
IF TG_OP=''INSERT'' OR NEW.ip!=OLD.ip THEN
expecting the TG_OP=''INSERT'' to be evaluated
first, and if true, proceed with the body.
But it gets evaluated as the result of an INSERT
statement, I get a (rather strangly worded) error:
ERROR: record
Oh yeah, I'm using v7.0
Mark
Hope you like black magic :)
SELECT IND AS T1_INDEX, MIN(CASE WHEN KEY=1 THEN VALUE ELSE NULL END) AS
KEY1VAL, MIN(CASE WHEN KEY=2 THEN VALUE ELSE NULL END) AS KEY2VAL, MIN(CASE
WHEN KEY=3 THEN VALUE ELSE NULL END) AS KEY3VAL FROM T2 GROUP BY IND ORDER BY
IND;
Mark
[EMAIL PROTECTED] wrote:
>
>
Is there any way to get table T3 (below) from T1 and T2 using SQL (select, view, etc)?
T3 is basically all INDEX values from T1 matched to IND from T2 with the corresponding
KEY/VALUE pairs transposed from rows to columns.
---
|INDEX| (T1)
---
| 1 |
| 2 |
| 3 |
---
Ange Michel POZZO <[EMAIL PROTECTED]> writes:
> select datetime(abstime( floor (value) ));
> select datetime(abstime( int4 (value) ));
> select datetime(abstime( numeric_int4 (value) ));
> in all case :
> ERROR: pg_atoi: error in "952969611.00": can't parse ".00"
That was fixed in Janu
Carolyn Lu Wong <[EMAIL PROTECTED]> writes:
> I was trying to dump data, drop then recreate table, and import data
> back to the table. There were errors during the process and the
> transaction was not committed.
> ERROR: mdopen: couldn't open accounts: No such file or directory.
Rolling back a
Lo.
I'm in dire need of knowledge, how to extract data by month. Monthday
and year arent' important, those I can't give from perl script, but what
I do give to postgres are the numbers of the months. Date field is in
timestamp. I thought about date_trunc, but I can't think of, how to get
data wi
On Thu, 3 Aug 2000, Carolyn Lu Wong wrote:
> I was trying to dump data, drop then recreate table, and import data
> back to the table. There were errors during the process and the
> transaction was not committed.
>
> The table is there when I do '\d' and the table definition is there.
> However,
On Thu, 3 Aug 2000, Ange Michel POZZO wrote:
> Le jeu, 03 aoű 2000, Karel Zak a écrit :
> > > my question is how can i convert the numeric or the int4 value to
> > > a date value?
> >
> >
> > test=# select abstime(965293003);
> > abstime
> >
> > 2000-08-03 10
Le jeu, 03 aoû 2000, Karel Zak a écrit :
> > my question is how can i convert the numeric or the int4 value to
> > a date value?
>
>
> test=# select abstime(965293003);
> abstime
>
> 2000-08-03 10:56:43+02
> (1 row)
>
> Ka
> my question is how can i convert the numeric or the int4 value to
> a date value?
test=# select abstime(965293003);
abstime
2000-08-03 10:56:43+02
(1 row)
Karel
hi all
i have a table like this
id_message int4 not null default nextval ( ...
id_abonneint4
texte_message varchar() not null
date_message numeric not null
the default size of numeric is 30.6
another table :
id_message int4
id_abonneint4
text_message text
date
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