Barry wrote:
Nenad Bosanac schrieb:
Hi I have one problem that i can`t resolve.
still need advice or is it solved?
IF!!! you need IF!! :)
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Jerry Swanson wrote:
Both Linux computers.
This is what I do...
$ more ssh_to_mysql_on_beta
#!/bin/sh
ssh \
-t \
-g \
-L 3306:beta.domain.ac.uk:3306 \
[EMAIL PROTECTED] \
./bin/sleep.plx mysql
That last line is a trick to prevent the terminal from 'timeing out'.
The sleep.plx
Hi, I think I saw this question being asked before, but I can't remember
if their was a simple answer.
If I have a table of two columns (PK and FK) with a one to many
relationship, i.e.
PK FK
1 a
2 a
3 a
4 b
5 b
6 b
7 c
8 c
9 d
+--+---+++-+
| G_ID | TOTAL | G2 | NR | ASSEMBLY_LISTING|
+--+---+++-+
| 1132 |34 | 1 | 1 | 1bf3-1,1bgj-1,1bgn-1,1bkw-1,1cc4-1, |
| | |||
( ... SEPARATOR = br)'
I was just looking for a text based report if possible. It seems it should
be do-able in perl or similar, but I don't know if it has.
Cheers,
PB
--
Dan Bolser wrote:
+--+---+++-+
| G_ID | TOTAL | G2 | NR
lenght. I doubled it up and saw my warnings
dissapear
Warning: 1260
Thanks very much for the above links,
Dan.
PB
Dan Bolser wrote:
Hi, I remember reading about an SQL query type which did something like
select all 'aircraft hangers' which contained exactly (or at least) some
given set
Hi, I remember reading about an SQL query type which did something like
select all 'aircraft hangers' which contained exactly (or at least) some
given set of aircraft.
Or did it select the list of pilots qualified to fly all the airplanes in
the hanger...
Anyway, I forget the syntax (and the
Hello,
I am interested in the theoretical time / space complexity of SQL queries
on indexed / non-indexed data.
I think I read somewhere that a JOIN on an indexed column is something
like O[mn*log(mn)] (m rows joined to n).
I assume without an index it is just O[m*n]
Specifically I want to
On Wed, 25 May 2005, Russell Horn wrote:
I have a pretty simple table with a list of payments, not much more
than:
paymentID | amount | paymentDate
1| 123| 2005-01-10
2| 77 | 2005-01-13
3| 45 | 2005-02-16
4| 13 | 2005-02-17
I can get totals per
On Mon, 11 Apr 2005 [EMAIL PROTECTED] wrote:
Dan Bolser [EMAIL PROTECTED] wrote on 04/11/2005 11:50:31 AM:
On Mon, 11 Apr 2005, Dan Bolser wrote:
Requirement:
Given two columns of a table (Column1 and Column2) of length x, return
two
columns (Column1_Scram and Column2_Scram
Hello,
I have data like this
PK GRP_COL
1 A
2 A
3 A
4 B
5 B
6 B
7 C
8 C
9 C
And I want to write a query to select data like this...
PK FK GRP_COL
1 1 A
2 1 A
3 1 A
4 4 B
5
| 1 | 12e8 | 1 |
| 12e8| 1 | 12e8 | 2 |
...
Cheers,
Mathias
Selon Dan Bolser [EMAIL PROTECTED]:
Hello,
I have data like this
PK GRP_COL
1A
2A
3A
4B
5B
6B
7C
8C
9C
And I want to write a query to select data like
blip
I agree, especially with the additional information the OP provided about
his REAL table structure. A separate groups table makes better sense.
Let this be an object lesson to others looking for assistance: If you want
timely and useful assistance, provide real and complete information
On Tue, 24 May 2005 [EMAIL PROTECTED] wrote:
Selon Dan Bolser [EMAIL PROTECTED]:
Hello,
I have data like this
PK GRP_COL
1A
2A
3A
4B
5B
6B
7C
8C
9C
And I want to write a query to select data like this...
PK FK GRP_COL
11
On Tue, 24 May 2005 [EMAIL PROTECTED] wrote:
Is there a better way to reset the auto_increment in a table, basically
there are several million rows in the database and the field that is
auto_increment is very large now and I don't want to exceed the limit of
the field description so I want to
On Sun, 15 May 2005, Matt Wagner wrote:
Hi,
A new version of MySQL Community Edition 4.1.12 Open Source database
management system has been released. It is now available in source and
binary form for a number of platforms from our download pages at
http://dev.mysql.com/downloads/ and mirror
On Sat, 7 May 2005, Jochem van Dieten wrote:
On 5/7/05, Dan Bolser wrote:
On Sat, 7 May 2005, Jochem van Dieten wrote:
On 5/7/05, Dan Bolser wrote:
select pk from a inner join b using (pk);
ERROR 1052 (23000): Column 'pk' in field list is ambiguous!!!
Is this a bug, or is it like
On Sun, 15 May 2005, Martijn Tonies wrote:
Bob,
I have a table, see below, that contains a single primary key
(SubTestCaseKey ) and a number of foreign keys
* plantriggers_ID_FK ,
* testcase_root_ID_FK
* testcasesuffix_name_FK
What I want to ensure is that there are no duplicate records
On Fri, 13 May 2005, Eric Bergen wrote:
Even better is if you have an integer primary key (think auto_increment)
and use in()
So if you want 10 random rows in your app generate 20 or so random
numbers and do something like
select col1, from t where x in (1, 5, 3, 2...) limit 10
check num rows
SELECT DISTINCT ROW(A,B) from a;
While I am on a roll (of sorts) can I ask if the above syntax should be
valid or not?
I have a feeling it should be valid (but isn't - it causes an error).
Is this the correct behaviour?
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On Sat, 7 May 2005, Jochem van Dieten wrote:
On 5/7/05, Dan Bolser wrote:
Why are columns included in the join between two tables ambigious?
Because MySQL does not follow the SQL standard (ISO/IEC 9075-2:2003).
select pk from a inner join b using (pk);
ERROR 1052 (23000): Column 'pk
On Sat, 7 May 2005, Roger Baklund wrote:
Dan Bolser wrote:
SELECT DISTINCT ROW(A,B) from a;
While I am on a roll (of sorts) can I ask if the above syntax should be
valid or not?
If you mean the exact syntax above, I think not... it looks like ROW()
is a function taking two parameters
Why are columns included in the join between two tables ambigious?
It seems that they should *not* be ambigious!
Like this
select pk from a inner join b using (pk);
ERROR 1052 (23000): Column 'pk' in field list is ambiguous!!!
Is this a bug, or is it like this for a reason? It drives me
in the
select statement?
Rhino
- Original Message -
From: Dan Bolser [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Friday, May 06, 2005 6:50 PM
Subject: amPiguous!
Why are columns included in the join between two tables ambigious?
It seems that they should *not* be ambigious!
Like
this could
become somewhat tricky with the ON syntax.
-Simon
- Original Message -
From: Dan Bolser [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Friday, May 06, 2005 6:50 PM
Subject: amPiguous!
Why are columns included in the join between two tables ambigious?
It seems
= b.col2
Of course, you need to replace 'a.col1' and 'b.col2' with real column names
from tables a and b respectively.
Rhino
- Original Message -
From: Dan Bolser [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Friday, May 06, 2005 6:50 PM
Subject: amPiguous!
Why
Hi, I have a query which looks like this...
SELECT
BLEAH,
COUNT(DISTINCT R1,R2)
FROM
T1
WHERE
FK = 1
GROUP BY
BLEAH
;
Lets say that over 10 rows where FK = 1 it counts 5 distinct R1-R2 pairs
in a single 'BLEAH' group BLEAH = 'Y'.
Now I want to search the table for all FK's with the
On Sat, 16 Apr 2005, David Blomstrom wrote:
I think my question is more oriented towards PHP, but
I'd like to ask it on this list, as I suspect the
solution may involve MySQL.
I'm about to start developing an enormous database
focusing on the animal kingdom and want to find a key
system more
On Sat, 16 Apr 2005, David Blomstrom wrote:
--- Kim Briggs [EMAIL PROTECTED] wrote:
David,
In reading through miscellaneous database design
text on the web, I
read just the other day that you should not try to
include meaningful
data in your key values. I assume there will be
some kind
The manual dosn't specify the maximum number of characters in the
TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT data types.
http://dev.mysql.com/doc/mysql/en/blob.html
Are these valid synonyms, TINYBLOB, MEDIUMBLOB and LONGBLOB?
I have a field with just under 1000 characters, am I OK with a
On Sat, 16 Apr 2005, Hassan Schroeder wrote:
Dan Bolser wrote:
The manual dosn't specify the maximum number of characters in the
TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT data types.
http://dev.mysql.com/doc/mysql/en/blob.html
Are these valid synonyms, TINYBLOB, MEDIUMBLOB and LONGBLOB
respect to hold at least 65536
characters!
Thanks for the pointers so far,
Dan.
- Original Message -
From: Dan Bolser [EMAIL PROTECTED]
To: Hassan Schroeder [EMAIL PROTECTED]
Cc: mysql@lists.mysql.com
Sent: Saturday, April 16, 2005 1:49 PM
Subject: Re: Size of BLOB types?
On Sat, 16
Beautiful!
Cheers, (one and all),
Dan.
On Sat, 16 Apr 2005, Dan Nelson wrote:
In the last episode (Apr 16), Dan Bolser said:
The manual dosn't specify the maximum number of characters in the
TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT data types.
http://dev.mysql.com/doc/mysql/en/blob.html
How to remove newlines from a column? Data is given me in binary format.
If I dump should I set some new record terminator, parse out newlines and
reload?
Any beter hack?
Dan.
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I think the suggestion posted here...
http://lists.mysql.com/mysql/182424
should get you going in the right direction.
You really need to know what you are doing to know if it is giving you the
correct answer or not.
It would be cool if their was something like a GROUP_ROW(cols, expr) to do
be a unique minimum for the_original_column.
When I said before that 'you really need to know what you are doing' -
what I mean is, I am very bad at explaining. Sorry if the above looks like
garble (but I can't do better).
Thanks!
Dan Bolser [EMAIL PROTECTED] wrote:
I think the suggestion
On Mon, 11 Apr 2005, Arjen Lentz wrote:
Hi Dan,
On Sat, 2005-04-09 at 02:59, Dan Bolser wrote:
Who can I prod about setting up a UDF repo at MySQL. I think 'they' should
do this ;)
Yep it's an existing idea, a very good one, and it's on the todo.
Putting such an infrastructure into place
I read with great interest this
http://www.artfulsoftware.com/queries.php#4
Display 1st row of every group
SELECT id
FROM tbl
GROUP BY id
HAVING count(*) = 1;
I want to use this syntax with an 'order by' like this...
SELECT *
FROM tbl
GROUP BY id
HAVING count(*) = 1
ORDER BY bleah;
a unique minimum value per id group.
On Mon, 11 Apr 2005, Dan Bolser wrote:
I read with great interest this
http://www.artfulsoftware.com/queries.php#4
Display 1st row of every group
SELECT id
FROM tbl
GROUP BY id
HAVING count(*) = 1;
I want to use this syntax with an 'order by' like
On Mon, 11 Apr 2005, Rhino wrote:
- Original Message -
From: Dan Bolser [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Monday, April 11, 2005 5:58 AM
Subject: Display 1st row of every group?
I read with great interest this
http://www.artfulsoftware.com/queries.php#4
Display
On Mon, 11 Apr 2005, Peter Brawley wrote:
/I guess that entry is either wrong or misleading./
Ordering by another column which isn't mutually dependent with the
grouping column will have unpredictable results. Is that what you mean
by the example being wrong or misleading?
No, I mean the
Requirement:
Given two columns of a table (Column1 and Column2) of length x, return two
columns (Column1_Scram and Column2_Scram) such that the distributions of
values in Column1 and Column2 are preserved in Column1_Scram and
Column2_Scram, but the pairs of values are randomized.
Solution
-
Dan Bolser wrote:
On Mon, 11 Apr 2005, Rhino wrote:
- Original Message -
From: Dan Bolser [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Monday, April 11, 2005 5:58 AM
Subject: Display 1st row of every group?
I read with great interest this
http
in set (2.78 sec)
...et cetera. REGEXP is explained here:
http://dev.mysql.com/doc/mysql/en/regexp.html
Eamon Daly
- Original Message -
From: Dan Bolser [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Sunday, April 10
On Mon, 11 Apr 2005, Dan Bolser wrote:
Requirement:
Given two columns of a table (Column1 and Column2) of length x, return two
columns (Column1_Scram and Column2_Scram) such that the distributions of
values in Column1 and Column2 are preserved in Column1_Scram and
Column2_Scram, but the pairs
I have a column like this my_col varchar(20) null.
The values in the column can be text or numbers. How can I select only
those rows where the value in this column is a valid number?
I need something like IS_DECIMAL(), but I can't find that function.
The following SQL fails to do the job
? Is this UDF material?
Any feedback is welcome,
Dan.
Thread
UDF request? - Dan Bolser, April 1 2005 12:10am
_
Dont just search. Find. Check out the new MSN Search!
http://search.msn.click-url.com/go/onm00200636ave/direct/01
Who can I prod about setting up a UDF repo at MySQL. I think 'they' should
do this ;)
http://lists.mysql.com/community/97
Anyway I am posting this request to 'community' because I still don't know
the appropriate place to post UDF related stuff.
This is anoter (potentially crazy) idea for a
I think what you are talking about could be called a 'crosstabulation' or
a crosstab.
Their are some tutorials about making cross-tabs using perl. I have used
them a lot, and they are really great.
I tend to stack up lots of IF statemens...
Table1
month person sex sales
1 a
On Fri, 8 Apr 2005, Jacob, Raymond A Jr wrote:
Does such a JOIN exist that can create a pivot table?
Thank you:
182361 by: Dan Bolser
182362 by: Peter Brawley
Now I must go into my cave and meditate on these queries:
Ommm,Ommm,...Ommm :-)
Great! Its a really
On Fri, 8 Apr 2005 [EMAIL PROTECTED] wrote:
Dan Bolser [EMAIL PROTECTED] wrote on 04/08/2005 12:41:35 PM:
On Thu, 7 Apr 2005, Sean Nolan wrote:
I think you'll find you can do what you want with a cross join. A cross
join
will join every row from the first table with every row from
Hi,
I have a request for a UDF that I would find really useful. I am
duplicating this question on the community list as well as the MySQL list,
because I am not sure where best to make this kind of request (see the
previous post http://lists.mysql.com/community/97).
I think the following
Hi,
I searched for previous discussion on this topic, but didn't find any.
I would like to see a centralized MySQL hosted UDF archive and development
project. The only existing 'archives' seem to be somewhat poorly
maintained (sorry), and suffer for their duplicated efforts and being
loosely
On Wed, 30 Mar 2005, Denis Gerasimov wrote:
Hello list,
I have two MySQL 4.1 servers, one local and one remote. I need to
transfer
database from one server to another. What actually is the best way of
handling this task?
Are there any standard MySQL tools available for doing
.
MarkP
On Wed, 30 Mar 2005 14:39:11 +0100 (BST), Dan Bolser
[EMAIL PROTECTED] wrote:
Hi,
I searched for previous discussion on this topic, but didn't find any.
I would like to see a centralized MySQL hosted UDF archive and development
project. The only existing 'archives' seem
I think I remember a match_at(:) or pat_index(:) UDF which would
return the position of the first : for you, but I can't find it if it
does exist.
On Wed, 30 Mar 2005, Christopher Vaughan wrote:
I have data in a table listed as
44:22:22
333:33:33
It stands for hhh:mm:ss
I want to break each
56 matches
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