On Sun, Mar 14, 2010 at 06:25:31PM -0400, Shawn Green writes:
SG> I know it's bad form to reply to yourself but I spotted something I
SG> could clarify
Thank you very much, it works good enough in this case!
SG> Shawn Green wrote:
>> ...
>>
>> One way to do this is to materialize the results of
I know it's bad form to reply to yourself but I spotted something I
could clarify
Shawn Green wrote:
...
One way to do this is to materialize the results of the ORDER BY into a
temporary table with an auto_increment column defined on it. Then just
do a query against the temporary table with
Pavel Gulchouck wrote:
On Fri, Mar 12, 2010 at 11:37:16PM +0100, Carsten Pedersen writes:
CP> Pavel Gulchouck skrev:
Is there any way to get sequence row number in request?
I need row number calculated before "having" but after "group by"
and "order", so "s
On Fri, Mar 12, 2010 at 11:37:16PM +0100, Carsten Pedersen writes:
CP> Pavel Gulchouck skrev:
>> Is there any way to get sequence row number in request?
>> I need row number calculated before "having" but after "group by"
>> and "order", so &q
Pavel Gulchouck skrev:
Hi!
Is there any way to get sequence row number in request?
I need row number calculated before "having" but after "group by"
and "order", so "select @row := @row+1" unsuitable in my case
(it executed before grouping).
something
Hi!
Is there any way to get sequence row number in request?
I need row number calculated before "having" but after "group by"
and "order", so "select @row := @row+1" unsuitable in my case
(it executed before grouping).
--
Pavel
--
MySQL Gene
The reason for this is probably because the original poster inherited
a database without a primary key, and now needs to make edits to it.
That happened to me with Oracle once, and I was lucky enough to be
able to use Oracle's rowid, which is a unique reference to the row
that is independent of th
At 14:13 +0530 8/10/06, <[EMAIL PROTECTED]> wrote:
Hi All,
Is there any way to refer a row based on the row number or
row count?
I just the effect as below...
E.g. UPDATE TBL_NAME SET COL_NAME = xyz WHERE ROW_NO=4
Or SELECT COL_NAME FROM TBL_NAME WHERE ROW_NO=
Bartis, Robert M (Bob) wrote:
> Why would you want to do this? As data moves around within the table the
> updates will be in error. Wouldn't it be easier to assign a unique key to
> each row, search for the key or unique set of information and update the
> resulting row?
>
> Bob
I don't know,
ECTED] [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 10, 2006 4:43 AM
To: mysql@lists.mysql.com
Subject: Can a row be refered using row number?
Hi All,
Is there any way to refer a row based on the row number or
row count?
I just the effect as below...
E.g. UPDATE TBL_NAME SET COL
At 03:43 AM 8/10/2006, you wrote:
Hi All,
Is there any way to refer a row based on the row number or
row count?
I just the effect as below...
E.g. UPDATE TBL_NAME SET COL_NAME = xyz WHERE ROW_NO=4
Or SELECT COL_NAME FROM TBL_NAME WHERE ROW_NO=5
Regards,
Ravi K
Ravi
Hi All,
Is there any way to refer a row based on the row number or
row count?
I just the effect as below...
E.g. UPDATE TBL_NAME SET COL_NAME = xyz WHERE ROW_NO=4
Or SELECT COL_NAME FROM TBL_NAME WHERE ROW_NO=5
Regards,
Ravi K
The information contained in this
Thanks Peter,
That looks pretty good to me. I never would have figured that out on
my own.
Dan T
On Jun 1, 2006, at 4:06 PM, Peter Brawley wrote:
Dan,
>I want to get a particular users 'rank' or row number from the query.
SELECT 1+COUNT(*) AS Rank
FROM results r1
INNER JO
Dan,
>I want to get a particular users 'rank' or row number from the query.
SELECT 1+COUNT(*) AS Rank
FROM results r1
INNER JOIN results r2 ON r1.points
I have a regular query lets say:
SELECT user, points FROM results ORDER BY points DESC
so I get:
userpoints
-
solution to your real problem. We need the real query to give a
real answer.
SELECT user, points FROM results ORDER BY points DESC
so I get:
userpoints
---
john23
steve 17
bill14
From this I want to get a particular users 'rank' or row number from
the
I have a regular query lets say:
SELECT user, points FROM results ORDER BY points DESC
so I get:
userpoints
---
john23
steve 17
bill14
From this I want to get a particular users 'rank' or row number from
the query. I was hoping for a single line elegant
Oops - I too forgot the list!
- Forwarded by Shawn Green/Unimin on 01/31/2006 09:19 AM -
Shawn Green/Unimin
01/31/2006 09:06 AM
To
Jacques Brignon <[EMAIL PROTECTED]>
cc
Subject
Re: Trans.: Re: Finding the row number satisfying a conditon in a result
set
Thank you fo
- Message transféré de Jacques Brignon <[EMAIL PROTECTED]> -
Date : Tue, 31 Jan 2006 13:52:16 +0100
De : Jacques Brignon <[EMAIL PROTECTED]>
Adresse de retour :Jacques Brignon <[EMAIL PROTECTED]>
Sujet : Re: Trans.: Re: Finding the row number satisfying a co
M] - Trans.: Re: Finding the row number satisfying a conditon
in a result set - Bayesian Filter detected spam
À : Gordon Bruce <[EMAIL PROTECTED]>
Thanks. That looks OK from the point of view of generating the row number. But
when this is done if my result set is tens of thousands row
Hi,
Can anyone point me in the right direction to find out why I keep getting the
following error? The table is newly created and then 14 LOAD DATA calls are
made to load approximately 24-30 million rows. Its a simple MyISAM table, no
triggers, proceedures etc with a couple of simple indexes.
+0100
> De : Jacques Brignon <[EMAIL PROTECTED]>
> Adresse de retour :Jacques Brignon <[EMAIL PROTECTED]>
> Sujet : Re: Finding the row number satisfying a conditon in a result
set
> À : Jake Peavy <[EMAIL PROTECTED]>
>
> Selon Jake Peavy <[EMAIL P
]
Sent: Monday, January 30, 2006 9:19 AM
To: mysql@lists.mysql.com
Subject: [SPAM] - Trans.: Re: Finding the row number satisfying a conditon in a
result set - Bayesian Filter detected spam
Oops! forgoten to include the list in the relply
--
Jacques Brignon
- Message transféré de Jacques Brignon <
]>
Sujet : Re: Finding the row number satisfying a conditon in a result set
À : Jake Peavy <[EMAIL PROTECTED]>
Selon Jake Peavy <[EMAIL PROTECTED]>:
> On 1/30/06, Jacques Brignon <[EMAIL PROTECTED]> wrote:
> >
> > I would like some advice on the various a
;
> The brute force method is to loop through all the rows of the result set,
> until
> the number is found to get the rank of the row. That does not seem very
> clever
> and it can be very time consuming if the set has a lot of rows.
use ORDER BY with a LIMIT of 1
your subject li
I would like some advice on the various and best ways of finding the rank of the
row which satisfies a given condition in a rsult set.
Let's assume that the result set includes a field containing an identifier from
one of the table used in the query and that not two rows have the same value
for t
: [EMAIL PROTECTED]
Cc: MySQL List
Subject: Re: Show row number
Excellent explanation. Thanks again.
CL
At 02:00 PM 1/25/2006, [EMAIL PROTECTED] wrote:
>Clyde Lewis <[EMAIL PROTECTED]> wrote on 01/25/2006 01:41:30 PM:
>
> > Is there a command in mysql that will return the row n
Excellent explanation. Thanks again.
CL
At 02:00 PM 1/25/2006, [EMAIL PROTECTED] wrote:
Clyde Lewis <[EMAIL PROTECTED]> wrote on 01/25/2006 01:41:30 PM:
> Is there a command in mysql that will return the row number. I
> tried rownum and rownum()
>
No, "rows" do n
Clyde Lewis <[EMAIL PROTECTED]> wrote on 01/25/2006 01:41:30 PM:
> Is there a command in mysql that will return the row number. I
> tried rownum and rownum()
>
No, "rows" do not exist in the base data of a MySQL database. They are
called "records" and
Is there a command in mysql that will return the row number. I
tried rownum and rownum()
Andy Ford wrote:
I thought LIMIT limited you to N number of CONCURRENT record. ie. limit
10 or limit 20
I believe Ross would like to select select 1000 records and then do a
sub select of records 1-20 and then 21-40 on this record set
LIMIT also allows you to specify a starting record, i.e. LIM
It seems to me you want to retrive n records based on the page number the user is in.
Here is what i use to page $limit records at a time using PHP:
$sql_select = "SELECT * FROM myTableName limit $offset , $limit";
$result = mysql_query($sql_select) or die ("Queryproblem: " . mysql_error());
number of rows to return. The offset of the initial row is 0 (not 1):
mysql> SELECT * FROM table LIMIT 5,10; # Retrieve rows 6-15
-Original Message-
From: Andy Ford [mailto:[EMAIL PROTECTED]
Sent: 01 April 2004 05:53
To: [EMAIL PROTECTED]
Subject: RE: How do I determine the row number
02 April 2004 13:48
> To: [EMAIL PROTECTED]
> Subject: How do I determine the row number or key when table has no key
> fields
>
> eg. say a table is created using:
>
> create table fred (f1 char(10), f2 int)
>
> Then it has neither keys nor an AUTO_INCREMENT field.
lumn, then reload the data.
Find more information in the manual at
http://www.mysql.com/doc/en/index.html
Andy
-Original Message-
From: Ross Honniball [mailto:[EMAIL PROTECTED]
Sent: 02 April 2004 13:48
To: [EMAIL PROTECTED]
Subject: How do I determine the row number or key when table
Take a look at LIMIT in the Manual
Cheers
Terry
--Original Message-
> eg. say a table is created using:
>
> create table fred (f1 char(10), f2 int)
>
> Then it has neither keys nor an AUTO_INCREMENT field.
>
> Let's say 1000,000 records are then inserted into table fred
eg. say a table is created using:
create table fred (f1 char(10), f2 int)
Then it has neither keys nor an AUTO_INCREMENT field.
Let's say 1000,000 records are then inserted into table fred.
I then say 'select * from fred' and loop through results writing to a web page.
I stop writing to th
age -
From: "Anthony Ward" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, June 02, 2003 6:21 PM
Subject: Row Number
> Hi,
>
> If i have a table with just "Userid,Name,Language"
> where userid is primary key.
> now if i search the first
Wouldn't you just type SELECT.LIMIT 10,10 ??
Mike Hillyer
www.vbmysql.com
-Original Message-
From: Anthony Ward [mailto:[EMAIL PROTECTED]
Sent: Monday, June 02, 2003 11:21 AM
To: [EMAIL PROTECTED]
Subject: Row Number
Hi,
If i have a table with just "Userid,Nam
> If i have a table with just "Userid,Name,Language"
> where userid is primary key.
> now if i search the first 10 people that speaks english i.e
> SELECT * FROM tablex WHERE language='English' LIMIT 10;
>
> Can't i get the row number of the
Hi,
If i have a table with just "Userid,Name,Language"
where userid is primary key.
now if i search the first 10 people that speaks english i.e
SELECT * FROM tablex WHERE language='English' LIMIT 10;
Can't i get the row number of the last matched record?
So i can d
ave; the PRIMARY KEY _is_ the row number, if you have one. If you use
auto_increment for your primary key, then ORDER BY {primary key} _is_
ordering by insert order. If you want your query to use any other order, you
_must_ create a column for that purpose; the database subsystem has no
way of kn
> There is no row number in MySQL. You should use ORDER BY to
>> retrieve data in particular order.
handf> What about the following info in the manual p. 55?
handf> Add a PRIMARY KEY or UNIQUE key to the table and use this. New in Version
handf> 3.23.11: If the PRIMARY or UNIQ
> There is no row number in MySQL. You should use ORDER BY to
> retrieve data in particular order.
What about the following info in the manual p. 55?
Add a PRIMARY KEY or UNIQUE key to the table and use this. New in Version
3.23.11: If the PRIMARY or UNIQUE key consists of only one colu
I need a 20 GB + DB that I'd like to access by row number or physical order.
handf> Of course I could use a special rownum column but that would be a waste of
handf> space plus require an additional key whereas mySQL already maintains such
handf> table internaly.
There is no row n
There is a "primary key" which is not the main order to access rows.
What I am emulating is a large memory space and the "primary key" is just
used not to duplicate rows.
In the current DB I use, I simply use the row number as my "memory pointer".
Since rows ar
>From: <[EMAIL PROTECTED]>
>
>I need a 20 GB + DB that I'd like to access by row number or physical order.
Are you certain?
In my experience, people who claim they need to access by physical order are making a
bunch of faulty assumptions, and REALLY want to access by temp
Hi,
I need a 20 GB + DB that I'd like to access by row number or physical order.
Of course I could use a special rownum column but that would be a waste of
space plus require an additional key whereas mySQL already maintains such
table internaly.
Hope this makes sens,
Best,
Th
Hello All,
is there any kind of row number pseudo-column that identifies a
particular row's position in the query's result set? Something like
RowNum in oracle.
Thanks!
-- john
--
===
John Cartwright
Pr
How can you get the current row number in a query?
Example:
ROW_NUMBER (not ID) DATA
-
1 AAA
2 BBB
49 matches
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