;
and then, at the end insert
COMMIT
See if that improves the numbers on the prepared statement.
- michael dykman
On Tue, Sep 2, 2008 at 5:41 PM, Jim Lyons [EMAIL PROTECTED] wrote:
I have a question about the prepare/execute commands provided by mysql.
I devised a benchmark, comparing updating a table using
:41 PM, Jim Lyons [EMAIL PROTECTED] wrote:
I have a question about the prepare/execute commands provided by mysql.
I devised a benchmark, comparing updating a table using a
statement-at-a-time versus using a prepare/execute pair. The table had a
million rows.
The statement-at-a-time
Hi,
When I read Jk's document on MySQL proxy:
http://jan.kneschke.de/projects/mysql/mysql-proxy/
In Load balancing part, he mentioned that:
We use SQF (shortest queue first) to distribute the load across the
backends equally. Each backend will get the same number of connections.
My
Jenny Chen wrote:
Hi,
According to the reference manual, it was said that the combined lnnodb log
file size is less than 4G on 32-bit system. But I'm running on my 64-bit
solaris, I still got the error complaining the innodb log file 4G for my
64-bit MySQL. So I'm wondering is this 4G limit
Hi,
According to the reference manual, it was said that the combined lnnodb log
file size is less than 4G on 32-bit system. But I'm running on my 64-bit
solaris, I still got the error complaining the innodb log file 4G for my
64-bit MySQL. So I'm wondering is this 4G limit apply on 64-bit system
calls in the my.ini file as well.
As I half expected, all the databases that I had added INNODB tables
failed when I tried to fire up the applications that used them.
Although I am not new to mysql, I have had a bit of MYISAM tunnel
vision with it so my question is, if I had just switched the default
. Sender does
not necessarily endorse content contained within this transmission.
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: Re: another INNODB vs MYISAM question
Date: Sat, 16 Aug 2008 08:52:51 -0400
CC: mysql@lists.mysql.com
First, databases do not have a table type
question is, if I had just switched the default
engine and NOT disabled the INNODB calls in my.ini, would that have
prevented the problem? I restored all the MYISAM files and got
everything back working again.
I don't want to go through the lengthy reproduction exercise of
reinstalling everything
that is the case. I did dump/restore the data
in question from the 5.x back to a 4.x server, but it decodes in error as well.
This obfuscation was a retrofit to an existing table, mostly of varchar fields.
Another thought I had was that perhaps it's not a good idea to store binary
data
the default, I commented out all the
INNODB calls in the my.ini file as well.
As I half expected, all the databases that I had added INNODB tables
failed when I tried to fire up the applications that used them.
Although I am not new to mysql, I have had a bit of MYISAM tunnel
vision with it so my question
Hello and Greetings mysql,
I have been running a WAMP server for some time on my Windows XP Pro
box. Over time I have gone through some issues about which WAMP to use
and last Year converted my Apache2Triad installation to WAMP5. All of
my database installations, out of preference, have been
If you have both myisam and innodb.
You need to ensure sql's from myisam and sql's from innodb have sufficient
memory to run.
you can allocate 25% of you RAM to key_buffer used exclusively for myisam
and around 60% of your RAM to innodb_buffer_pool for supporting innodb .
Also there are other
Dear all,
I have two tables,let's call then a and b:
Table a:
CUI1|CUI2
C001|C002
C002|C003
C003|C055
C004|C002
...
Table b:
CUI|STY
C001|T001
C002|T002
C003|T003
C004|T004
C005|T006
C055|T061
..
And the join table should be:
T001|T002
T002|T003
T003|T061
T004|T002
...
So,I should convert
Dear all,
I have two tables,let's call then a and b:
Table a:
CUI1|CUI2
C001|C002
C002|C003
C003|C055
C004|C002
...
Table b:
CUI|STY
C001|T001
C002|T002
C003|T003
C004|T004
C005|T006
C055|T061
..
And the join table should be:
T001|T002
T002|T003
T003|T061
T004|T002
You can also set the bulk_insert_buffer_size=between 500MB TO 1GB, based
on available RAM.
This would improve bulk insert on myisam tables.
regards
anandkl
On 7/26/08, mos [EMAIL PROTECTED] wrote:
At 06:46 PM 7/25/2008, you wrote:
List,
I am bulk inserting a huge amount of data into a
List,
I am bulk inserting a huge amount of data into a MyISAM table (a
wikipedia page dump).
Before I issued SOURCE filename.sql; I did an ALTER TABLE page DISABLE
KEYS; LOCK TABLES page WRITE;
The dump consists of about 1,200 bulk INSERT statements with roughly
12,000 tuples each.
For the
At 06:46 PM 7/25/2008, you wrote:
List,
I am bulk inserting a huge amount of data into a MyISAM table (a
wikipedia page dump).
Before I issued SOURCE filename.sql; I did an ALTER TABLE page DISABLE
KEYS; LOCK TABLES page WRITE;
The dump consists of about 1,200 bulk INSERT statements with
Guys,
I have been fighting with mysql trying to get it to only show every after
the last dot(.) on a ip. for example
instead geting 10.0.0.0 only get 10.0.0
But what every I try doesn't work. Can someone pls point to a web page
where I can learn how to do it, of explain it here.
Thanks.
Payne
On Wed, Jul 23, 2008 at 11:45 AM, [EMAIL PROTECTED] wrote:
Guys,
I have been fighting with mysql trying to get it to only show every after
the last dot(.) on a ip. for example
instead geting 10.0.0.0 only get 10.0.0
As pulled from a database row? Sorry, I didn't quite understand your
Yes, sorry. I have a database that records ip of attacks on a customer
server, what I like to do get a count so that I can see what subnet is
doing the major of the attacks.
select ip from ipslimit 10;
+-+---+
| ip | count(ip) |
+-+---+
I think you're after the SUBSTRING_INDEX(str,delim,count) function, so (I've
not tried this):
select substring_index(ip,'.',3) from ipslimit 10;
--- On Wed, 23/7/08, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
Subject: Re: a question...
To: Daniel
On Wed, Jul 23, 2008 at 12:10 PM, [EMAIL PROTECTED] wrote:
Yes, sorry. I have a database that records ip of attacks on a customer
server, what I like to do get a count so that I can see what subnet is
doing the major of the attacks.
select ip from ipslimit 10;
On Wed, 2008-07-23 at 12:10 -0400, [EMAIL PROTECTED] wrote:
Yes, sorry. I have a database that records ip of attacks on a customer
server, what I like to do get a count so that I can see what subnet is
doing the major of the attacks.
select ip from ipslimit 10;
PROTECTED] [EMAIL PROTECTED]
Subject: Re: a question...
To: Daniel Brown [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED], mysql@lists.mysql.com
Date: Wednesday, 23 July, 2008, 5:10 PM
Yes, sorry. I have a database that records ip of attacks on
a customer
server, what I like to do get a count so that I can
I just want to point out that public IPs are no longer given out as
Class A, B, and C networks, but based on CIDR. You can use rwhois to
figure out who has use of a certain subnet and what the range of it is.
Thank you,
Micah Gersten
onShore Networks
Internal Developer
http://www.onshore.com
At 08:23 PM 7/20/2008, Perrin Harkins wrote:
On Sun, Jul 20, 2008 at 12:12 AM, mos [EMAIL PROTECTED] wrote:
Is there a way to get Insert ... select ... On Duplicate Update to
update
the row with the duplicate key?
That's what it does.
Why can't it do this?
What makes you think it can't?
On Mon, Jul 21, 2008 at 11:44 AM, mos [EMAIL PROTECTED] wrote:
I can't specify all of the columns in a Set statement in the
OnDuplicate clause because I don't know what the column names are and there
could be 100 columns.
Write code to do it. There is no way around specifying the
At 11:00 AM 7/21/2008, Perrin Harkins wrote:
On Mon, Jul 21, 2008 at 11:44 AM, mos [EMAIL PROTECTED] wrote:
I can't specify all of the columns in a Set statement in the
OnDuplicate clause because I don't know what the column names are and there
could be 100 columns.
Write code to do
So just use REPLACE instead of INSERT...
http://dev.mysql.com/doc/refman/5.0/en/replace.html
On Mon, Jul 21, 2008 at 11:44 AM, mos [EMAIL PROTECTED] wrote:
At 08:23 PM 7/20/2008, Perrin Harkins wrote:
On Sun, Jul 20, 2008 at 12:12 AM, mos [EMAIL PROTECTED] wrote:
Is there a way to get
At 12:16 PM 7/21/2008, you wrote:
So just use REPLACE instead of INSERT...
Sure, but a Replace will delete the existing row and insert the new one
which means also maintaining the indexes. This will take much longer than
just updating the existing row. Now if there were only a couple of
On Mon, Jul 21, 2008 at 2:43 PM, mos [EMAIL PROTECTED] wrote:
I thought if MySQL found a duplicate key on the insert, it would
automatically update the existing row that it found with the results from
table1 if I left out the column expressions in the update clause. But
apparently it doesn't
On Sun, Jul 20, 2008 at 12:12 AM, mos [EMAIL PROTECTED] wrote:
Is there a way to get Insert ... select ... On Duplicate Update to update
the row with the duplicate key?
That's what it does.
Why can't it do this?
What makes you think it can't?
- Perrin
--
MySQL General Mailing List
For
Is there a way to get Insert ... select ... On Duplicate Update to
update the row with the duplicate key? Otherwise I'll have to use Replace
which is inefficient because it deletes the old duplicated row and then
inserts the new row with the same key. I'd much rather have it update the
hi there,
I am a casual database tinkerer that has to build a new database.
so please do not fall down laughing if I ask stupid questions ..
the problem at hand is that I want to create tables with the following
structure:
- suppliers
they produce/deal-with 0 to n products
- products
a
primary key.
My question pertains to referrerID. The referrerID specifies which OTHER
USER referred this new user. Thus it is a foreign key that links to a userID
in another user record. I do not recall ever linking attributes from the
same table (even for different records) so I have a hunch
I think this is possible but I'm having a total brain fart as to how to
construct the query..
Table2.ticket = table1.ID
Table2 is a many to 1 relationship to table1
I need to delete all records from table1 where created
unix_timestamp(date_sub(now(), interval 3 month))
And all rows from
If the tables are InnoDB, you could temporarily set up a foreign key
relationship between the two, with the 'ON DELETE CASCADE' option.
On Tue, 2008-07-08 at 11:14 -0400, Jeff Mckeon wrote:
I think this is possible but I'm having a total brain fart as to how to
construct the query..
-Original Message-
From: Ian Simpson [mailto:[EMAIL PROTECTED]
Sent: Tuesday, July 08, 2008 11:27 AM
To: Jeff Mckeon
Cc: mysql@lists.mysql.com
Subject: Re: delete query question
If the tables are InnoDB, you could temporarily set up a foreign key
relationship between the two
To: Jeff Mckeon
Cc: mysql@lists.mysql.com
Subject: Re: delete query question
If the tables are InnoDB, you could temporarily set up a foreign key
relationship between the two, with the 'ON DELETE CASCADE' option.
Nope, MyISAM...
On Tue, 2008-07-08 at 11:14 -0400, Jeff Mckeon
Jeff,
Table2.ticket = table1.ID
Table2 is a many to 1 relationship to table1
I need to delete all records from table1 where created
unix_timestamp(date_sub(now(), interval 3 month))
And all rows from table2 where Table2.ticket = Table1.ID
(of the deleted rows..)
Like this (untested)?
Thanks, that did it!
-Original Message-
From: Peter Brawley [mailto:[EMAIL PROTECTED]
Sent: Tuesday, July 08, 2008 11:57 AM
To: Jeff Mckeon
Cc: mysql@lists.mysql.com
Subject: Re: delete query question
Jeff,
Table2.ticket = table1.ID
Table2 is a many to 1 relationship
Hello,
I remember some activity regarding some flakiness when using merge-tables.
I searched out and reviewed this:
http://bugs.mysql.com/bug.php?id=26881
Using 5.0.51a on RHEL 4 box, I'm still seeing similar issues.
The INFORMATION_SCHEMA shows the merge table as follows
TABLE_CATALOG:
can u please show use the content of the test.csv file. Also is comapny
name a single column or two different columns
If its two different columns than try this
load data file '/foo/test.csv' into table abc.test fields terminated by ','
(company,name);
On 6/28/08, bruce [EMAIL PROTECTED]
Peter,
Yes, I know there are two rows in the course_subject table with a
catalog_number of 520. One has a subject of 'ME' and the other has a
subject of 'MSE'.
What I want is ONLY the 'ME' row (if a row exists with a subject of
'ME').If an 'ME' subject row does not exist, then I want
Tina
What I want is ONLY the 'ME' row (if a row exists with a subject of
'ME').
If an 'ME' subject row does not exist, then I want the other one.
I see. Then to complete spec, what behaviour is desired when there are
two rows with 'ME', or two rows with (course_offer_number = 1 AND
What I want is ONLY the 'ME' row (if a row exists with a subject of
'ME').
If an 'ME' subject row does not exist, then I want the other one.
Ill be offline for awhile so I'll assume answers not available, ie allow
='ME' dupes and 'ME' dupes if they exist. A one-query answer is to
union (i)
Peter,
I really appreciate all the help. Unfortunately, the query you came up
with still returns two rows for catalog_number = 520.
I modified your query slightly to this to qualify a specific catalog_number:
SELECT c.course_id,s.course_offer_number,s.subject
FROM course c
JOIN
Hi..
I've got an issue with doing a Load data file cmd..
my test text tbl has a column named company name i'm trying to figure out
how to use the load data file cmd, to be able to extract the company name
col...
when i do:
load data file '/foo/test.csv' into table abc.test (company name);
I have two tables:
1.) A course table (stores course_id and catalog_number)
2.) A course_subject table (stores course_id, catalog_number, subject,
and course_offer_number)
For each row in the course_table, there can be many rows in the
course_subject table, due to cross-postings among
Tina
Basically, if the subject is ME, then I want to select that row.
If there is no row for that catalog_number that has a subject of ME,
then I want to grab the row that has a course_offer_number of '1'
and a subject that is not equal to ME.
Is this what you mean?
SELECT ...
FROM
Peter,
That was the first query I tried, but for some reason, it still pulled
all of the rows. So I've been trying to come up with another solution.
Any other ideas?
Thanks for the reply.
Tina
Peter Brawley wrote, On 6/26/08 2:12 PM:
Tina
Basically, if the subject is ME, then I want to
Tina,
for some reason, it still pulled all of the rows
Are there multiple rows which meet your WHERE condition? If so, and if
you want just one of them, your need another WHERE condition.
PB
-
Tina Matter wrote:
Peter,
That was the first query I tried, but for some reason, it still
Even if I do a basic select (with no joins) for a given catalog_number,
I still get two rows back.
Even if I do this simple query, while hardcoding in a catalog_number:
SELECT subject, catalog_number FROM course_subject
WHERE (catalog_number = 520) AND
((subject = 'ME') OR
Tina,
Even if I do this simple query, while hardcoding in a catalog_number:
SELECT subject, catalog_number FROM course_subject
WHERE (catalog_number = 520) AND
((subject = 'ME') OR ((course_offer_number = 1) AND (subject NOT LIKE
'ME')))
Errrm, you mean ...subject 'ME'..., don't you!?
I
Hi guys,
This might be somewhat off topic but does anyone have experience with Baron
Schwartz's maatkit, particulary with error messages?
I have several databases on my master/slave setup and can use
mk-table-checksum on almost all of them on both hosts.
There are 3 databases where I get this
Hello all,
Currently, if I use sql_mode ERROR_FOR_DIVISION_BY_ZERO and have a select
statement that has division by zero, I get back a warning:
mysql set sql_mode=ERROR_FOR_DIVISION_BY_ZERO;
Query OK, 0 rows affected (0.00 sec)
mysql select 1/0;
+--+
| 1/0 |
+--+
| NULL |
+--+
1
On Wed, May 21, 2008 at 9:45 PM, David Perron [EMAIL PROTECTED] wrote:
Hello MySQL Users-
I am pretty sure this is a simple question and I am over thinking how to
solve the problem, so I am hoping the community can help.
I am selecting a pretty straightforward aggregation from a single stats
Users-
I am pretty sure this is a simple question and I am over thinking how to
solve the problem, so I am hoping the community can help.
I am selecting a pretty straightforward aggregation from a single stats
table with the following format:
SELECT
Description
LongDescription
Detail
On May 21, 2008, at 8:09 AM, Moon's Father wrote:
Now I want to know which way you use to create index of a table.
1、ix_u (item_id,item_count)
ix_item_count (item_count)
This makes sense if you have queries which search item_id AND
item_count, and queries which just search the column
On May 21, 2008, at 8:46 AM, Paul McCullagh wrote:
On May 21, 2008, at 8:09 AM, Moon's Father wrote:
Now I want to know which way you use to create index of a table.
1、ix_u (item_id,item_count)
ix_item_count (item_count)
This makes sense if you have queries which search item_id AND
Thanks for your reply very much.
What I always use is the first way.
But I also want to know if the following way is proper when I search
item_id AND item_count and the column 'item_count'.?
ix_item_id (item_id)
ix_item_count (item_count)
2008/5/21 Paul McCullagh [EMAIL PROTECTED]:
On
Thanks very much.
2008/5/21 Paul McCullagh [EMAIL PROTECTED]:
On May 21, 2008, at 8:46 AM, Paul McCullagh wrote:
On May 21, 2008, at 8:09 AM, Moon's Father wrote:
Now I want to know which way you use to create index of a table.
1、ix_u (item_id,item_count)
ix_item_count (item_count)
Hello MySQL Users-
I am pretty sure this is a simple question and I am over thinking how to
solve the problem, so I am hoping the community can help.
I am selecting a pretty straightforward aggregation from a single stats
table with the following format:
SELECT
Description
= U.user_id)
I would like to do it without a subquery, I thought that the
multiple table syntax for UPDATE would do it, but I can't wrap
my head around it.
UPDATE user U, event_log L
SET U.last_visit = MAX(L.event_time)
WHERE U.user_id = L.user_id
GROUP BY L.event_time
I guess the main question is - CAN I
Hey all -
I have two tables - an event_log table, and a user table. There is
a last_visit column in the user table, and I want to update it from
the event_log with the most recent event timestamp. And I want to do
it without a subquery, eventually, both these tables will be pretty
large,
Clarification: I DON'T want to update the last_visit field if there
is no matching event record...
I managed to get this to sort of work:
update enduser E
set E.last_visit = (select MAX(EL.event_time)
from event_log EL
where EL.enduser_acnt =
in UPDATE
statement?
M
- Original Message - From: Andy Wallace [EMAIL PROTECTED]
To: mysql list mysql@lists.mysql.com
Sent: Wednesday, May 07, 2008 1:07 PM
Subject: Re: question about update/join query
Clarification: I DON'T want to update the last_visit field if there
is no matching event
like to do it without a subquery, I thought that the
multiple table syntax for UPDATE would do it, but I can't wrap
my head around it.
UPDATE user U, event_log L
SET U.last_visit = MAX(L.event_time)
WHERE U.user_id = L.user_id
GROUP BY L.event_time
I guess the main question is - CAN I do
like to do it without a subquery, I thought that the
multiple table syntax for UPDATE would do it, but I can't wrap
my head around it.
UPDATE user U, event_log L
SET U.last_visit = MAX(L.event_time)
WHERE U.user_id = L.user_id
GROUP BY L.event_time
I guess the main question is - CAN I do
I have a PHP script that seems to be failing. I execute it using
window.location.href(http://www.vote.com/vote2.php;):
?php
$link = mysql_connect('localhost', 'login', 'password');
if (!$link) {
die('Could not connect: ' . mysql_error());
}
$result = use election
if (!$result) {
die('Could
Hi.
try this
?php
mysql_connect('localhost', 'login', 'password')
or die('Could not connect: ' . mysql_error());
mysql_select_db(election) or die (Could not select election database);
$result = mysql_query(update election set Votes = Votes + 1 where
Name='TheGuy');
if (!$result) {
On 6 May 2008, at 15:39, Michael Condon wrote:
I have a PHP script that seems to be failing. I execute it using
window.location.href(http://www.vote.com/vote2.php;):
?php
$link = mysql_connect('localhost', 'login', 'password');
if (!$link) {
die('Could not connect: ' . mysql_error());
}
195 Farmington Ave.
Farmington, CT 06032
860.674.8796 / FAX: 860.674.8341
www.the-infoshop.com
www.giiexpress.com
www.etudes-marche.com
-Original Message-
From: Michael Condon [mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 06, 2008 10:39 AM
To: mysql@lists.mysql.com
Subject: PHP Question
I
.
Farmington, CT 06032
860.674.8796 / FAX: 860.674.8341
www.the-infoshop.com
www.giiexpress.com
www.etudes-marche.com
-Original Message-
From: Michael Condon [mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 06, 2008 10:39 AM
To: mysql@lists.mysql.com
Subject: PHP Question
I have a PHP
at this problem for the whole day and did not make
much of a progress. If someone has any idea how to resolve this problem,
I'll appreciate a tip greatly.
a similar question was just answered on this list about 15 hours before your
question ...
http://lists.mysql.com/mysql/212457
--
Sebastian
David Perron schrieb:
Hello Users-
I think I have an interesting question with regards to applying a function
to date range, I think half of problem solving is explaining it to an
audience so please, bear with me.
There is a table Orders that has two DATE columns, StartDate and EndDate
David Perron schrieb:
Hi Sebastian-
Wanted to follow up on this. I figured out the problem. You actually
have to use the LEAST GREATEST operators when comparing multiple
values, this statement works perfectly.
LEAST(EndDays,Q2EndDays) - GREATEST(Q2StartDays,StartDays) as DaysInQ2,
Thanks, Sebastian!
I have tried this one before. The problem is that it finds all items
the tags of which include EITHER 'blue' OR 'red', not 'blue' AND 'red':
mysql SELECT DISTINCT items.title from items inner join taggings on
(items.id = taggings.item_id) inner join tags on (tags.id =
Ingo Weiss schrieb:
Thanks, Sebastian!
I have tried this one before. The problem is that it finds all items the
tags of which include EITHER 'blue' OR 'red', not 'blue' AND 'red':
oh ... and ..., i missred
SELECT DISTINCT items.*
FROM items
INNER JOIN taggings
ON
Hello Users-
I think I have an interesting question with regards to applying a function
to date range, I think half of problem solving is explaining it to an
audience so please, bear with me.
There is a table Orders that has two DATE columns, StartDate and EndDate.
The range of dates can vary
I have a table that stores performed transactions and I need to build a
histogram of a number of transactions per day in the requested period.
So, I made a simple query with the group by clause which returns me what
I need:
2008-04-16 65456204
2008-04-17 190838546
2008-04-18
On Thursday 24 April 2008 12:26:09 pm Gary Greenberg wrote:
except that there is no entry for April 20th as there were no
transactions at that day. I need a query to return me zero for that day.
I.e. I need uninterrupted sequence of dates.
I am beating my head at this problem for the whole day
Hi all,
I have an application where items can be tagged. There are three
tables 'items', 'taggings' and 'tags' joined together like this:
items inner join taggings on (items.id = taggings.item_id) inner
join tags on (tags.id = taggings.tag_id)
Now I have been struggling for some time
Ingo Weiss schrieb:
Hi all,
I have an application where items can be tagged. There are three tables
'items', 'taggings' and 'tags' joined together like this:
items inner join taggings on (items.id = taggings.item_id) inner join
tags on (tags.id = taggings.tag_id)
Now I have been
userId long
picture MeduimBlob
datePosted DateTime
A userId can have many pictures posted. I want to write a
query that returns a distinct userId along with the most
recent picture posted. Can someone suggest an elegant and
fast query to accomplish this?
Latest pic for user N:
SELECT
See Thread at: http://www.techienuggets.com/Detail?tx=32975 Posted on behalf of
a User
Hello everyone,
I have a table A:
userId long
picture MeduimBlob
datePosted DateTime
A userId can have many pictures posted. I want to write a query that returns a
distinct userId along with the most
See Thread at: http://www.techienuggets.com/Detail?tx=32975 Posted on behalf of
a User
select userId, picture, MAX(datePosted) from A order by datePosted;
In Response To:
Hello everyone,
I have a table A:
userId long
picture MeduimBlob
datePosted DateTime
A userId can have many
I just thought of something else... could the same be accomplished
using stored routines? I could find no way in MySQL to create stored
routines which could be used with the 'group by' queries though.
If this were possible, it should then be also possible to define a
'LAST' stored routine,
On Fri, Apr 11, 2008 at 4:01 PM, Victor Danilchenko
[EMAIL PROTECTED] wrote:
Oooh, this looks evil. It seems like such a simple thing. I guess
creating max(log_date) as a field, and then joining on it, is a solution --
but my actual query (not the abridged version) is already half a
I have the following query...
SELECT c.NLCID, n.publishdate
FROM newsletter n
JOIN newslettersection s using (NLID)
JOIN newslettercontent c using(NLCID)
WHERE contenttype = 1 AND n.publishdate AND c.`timestamp` = '-00-00
00:00:00'
I want to run an update on newslettercontent and set its
Chris W schrieb:
I have the following query...
SELECT c.NLCID, n.publishdate
FROM newsletter n
JOIN newslettersection s using (NLID)
JOIN newslettercontent c using(NLCID)
WHERE contenttype = 1 AND n.publishdate AND c.`timestamp` = '-00-00
00:00:00'
I want to run an update on
update newslettercontent c set c.timestamp= (select n.publishdate from
newsletter n where
n.NLCID= c.NLCID);
This should work.
On 4/16/08, Chris W [EMAIL PROTECTED] wrote:
I have the following query...
SELECT c.NLCID, n.publishdate
FROM newsletter n
JOIN newslettersection s using (NLID)
Hi all,
I trying to run a query where, after doing a UNION on two different
SELECTs, I need to sort the result by username and log_date fields, and
then grab the last entry for each username ('last' as determined by the
ordering of the log_date field, which is a datetime).
GROUP
On Fri, Apr 11, 2008 at 11:46 AM, Victor Danilchenko
[EMAIL PROTECTED] wrote:
GROUP BY seems like an obvious choice; 'GROUP BY username', to be
exact. However, this seems to produce not the last row's values, but ones
from a random row in the group.
Under most databases your query is
Oooh, this looks evil. It seems like such a simple thing. I guess
creating max(log_date) as a field, and then joining on it, is a solution
-- but my actual query (not the abridged version) is already half a page
long.
I think at this point, unless someone else suggests a better solution,
On Fri, Apr 11, 2008 at 1:01 PM, Victor Danilchenko
[EMAIL PROTECTED] wrote:
Oooh, this looks evil. It seems like such a simple thing. I guess
creating max(log_date) as a field, and then joining on it, is a solution --
but my actual query (not the abridged version) is already half a
Hello,
Can MySQL functions/stored procedures access database data?
Joshua D. Drake
--
The PostgreSQL Company since 1997: http://www.commandprompt.com/
PostgreSQL Community Conference: http://www.postgresqlconference.org/
United States PostgreSQL Association: http://www.postgresql.us/
Donate
On Fri, Apr 11, 2008 at 2:15 PM, Joshua D. Drake [EMAIL PROTECTED] wrote:
Hello,
Can MySQL functions/stored procedures access database data?
Joshua D. Drake
Yes. Is there something in particular you are looking to do?
--
Rob Wultsch
[EMAIL PROTECTED]
wultsch (aim)
--
MySQL General
At 2:15 PM -0700 4/11/08, Joshua D. Drake wrote:
Hello,
Can MySQL functions/stored procedures access database data?
Yes, with some limitations. You will want to read this
section to see whether what you want to do is restricted:
On Fri, 11 Apr 2008 14:52:30 -0700
Rob Wultsch [EMAIL PROTECTED] wrote:
On Fri, Apr 11, 2008 at 2:15 PM, Joshua D. Drake
[EMAIL PROTECTED] wrote:
Hello,
Can MySQL functions/stored procedures access database data?
Joshua D. Drake
Yes. Is there something in particular you are
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