Hi,
We have a requirement wherein we have to store around 3 MB of data in
Postgres database.
We had gone through the postgres website
http://www.postgresql.org/docs/7.4/interactive/datatype-character.html#DATATYPE-CHARACTER-SPECIAL-TABLE
The above link says varchar can store upto 1 GB of
You could have a look at the OFFSET and LIMIT modifiers
as for untested example
select ((select max( AValue) from table group by Num) - AValue) as
difference from table order by AValue desc offset 1
this says: give me a inversed ordered AValue-list but ommitting the first
(biggest) and subtract
|-Original Message-
|From: Marc Wrubleski [mailto:[EMAIL PROTECTED]
|Sent: Mittwoch, 01. Juni 2005 16:15
|To: pgsql-sql@postgresql.org
|Subject: [SQL] Returning a Cross Tab record set from a function
|
[...]
|
|It seems I can do this from any higher level language, but it drives me
Vadivel Subramaniam wrote:
Hi,
We have a requirement wherein we have to store around 3 MB of data
in Postgres database.
We had gone through the postgres website
http://www.postgresql.org/docs/7.4/interactive/datatype-character.html#DATATYPE-CHARACTER-SPECIAL-TABLE
The above link says
Vadivel Subramaniam wrote:
I assume, it could not be a problem with ODBC. I am able to store 2.5 MB of
data into Oracle using the same ODBC APIs.
Well, it certainly isn't to do with PG itself:
$ cat bigtest.pl
#!/usr/bin/perl
print CREATE TABLE foo (a int, b varchar);\n;
print INSERT INTO
Hi All!
What is faster - SLECTion data from one large table (200 000 - 300 000
records), or SELECTion from a few small tables (example, 2 tables 150
000 records each)?
Thank You
---(end of broadcast)---
TIP 4: Don't 'kill -9' the postmaster
Vadivel Subramaniam [EMAIL PROTECTED] writes:
2. create table utilntmlscripts (name character varying, data character
varying(10485770));
ERROR: length for type 'varchar' cannot exceed 10485760
It's not allowing more than 10 MB of size during table creation.
Use type text, or
ON.KG wrote:
Hi All!
What is faster - SLECTion data from one large table (200 000 - 300 000
records), or SELECTion from a few small tables (example, 2 tables 150
000 records each)?
It depends. Are you selecting all records? One record? A few records? If
one or a few, do you have a suitable
Hi All!
What is faster - SLECTion data from one large table (200 000 - 300 000
records), or SELECTion from a few small tables (example, 2 tables 150
000 records each)?
RH It depends. Are you selecting all records? One record? A few records? If
RH one or a few, do you have a suitable index on
, 24/05/2005 00:06 -0400, Tom Lane :
Joe Conway [EMAIL PROTECTED] writes:
Markus Bertheau wrote:
why does SELECT ARRAY(SELECT 1 WHERE FALSE) return NULL instead of
ARRAY[] resp. '{}'?
Why would you expect an empty array instead of a NULL?
I think he's got a good point, actually.
Markus Bertheau =?UTF-8?Q?=E2=98=AD?= [EMAIL PROTECTED] writes:
By analogy, array_upper('{}'::TEXT[], 1) should return 0 instead of
NULL.
No, that doesn't follow ... we've traditionally considered '{}' to
denote a zero-dimensional array. A 1-D array of no elements is
'[1:0]={}', just as Joe
Tom Lane wrote:
Markus Bertheau =?UTF-8?Q?=E2=98=AD?= [EMAIL PROTECTED] writes:
By analogy, array_upper('{}'::TEXT[], 1) should return 0 instead of
NULL.
No, that doesn't follow ... we've traditionally considered '{}' to
denote a zero-dimensional array. A 1-D array of no elements is
ON.KG wrote:
Hi All!
What is faster - SLECTion data from one large table (200 000 - 300 000
records), or SELECTion from a few small tables (example, 2 tables 150
000 records each)?
RH It depends. Are you selecting all records? One record? A few records? If
RH one or a few, do you have a
On Wed, Jun 01, 2005 at 18:00:49 +0200,
Alain Reymond [EMAIL PROTECTED] wrote:
Hello,
I have the following problem :
I have a table like
IdNum Date AValue
1 10 01/01/2005 50
2 10 31/05/2005 60
3 25
Hi,
I basically need the SQL equivalent of the following pseudo code:
BEGIN
FOR v IN SELECT * FROM f(4, 'foo') LOOP
FOR w IN SELECT * FROM f(v.id, 'bar') LOOP
RETURN NEXT W
END LOOP;
END LOOP;
RETURN;
Is that possible in SQL?
Markus
--
Markus Bertheau [EMAIL PROTECTED]
This is basicly a Join, a cross table
i.e.
select b.w from table a, table b where ...
|-Original Message-
|From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
|Sent: Montag, 06. Juni 2005 18:53
|To: pgsql-sql@postgresql.org
|Subject: [SQL] SQL equivalent to nested loop
|
|
|Hi,
|
|I
Dnia 06-06-2005, pon o godzinie 20:08 +0200, KPFERL Robert napisa(a):
This is basicly a Join, a cross table
i.e.
select b.w from table a, table b where ...
You'd hope that. The problem is that you don't have the tables and
afterwards specify the join condition, but in specifying the
hi
i have a table of the type:
id serial unique,
name varchar(50),
fixed boolean default FALSE
if the value of 'fixed' is TRUE, then this row cannot be deleted. How
do i enforce this condition?
--
regards
kg
http://www.livejournal.com/users/lawgon
tally ho! http://avsap.sourceforge.net
!
hi
in the query:
alter database dbname set datestyle='DMY','European';
what is the significance of the two parameters given in datestyle. I
assumed that one is input and the other is output, but if i put:
set datestyle='DMY','DMY'
i get an error saying 'conflicting datestyles'
--
regards
kg
RH ON.KG wrote:
Hi All!
What is faster - SLECTion data from one large table (200 000 - 300 000
records), or SELECTion from a few small tables (example, 2 tables 150
000 records each)?
For example i have two large tables
Structure of tables is same - has two fields - id, ip
Now i'm using
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