I think that your solution is also a generic one.
But i thought that since saturday and sunday are not business days, the query
will not be played.
On monday 08h00, we know that there is no new records in the table.
I encourage Crisiti to study this solution also.
Mathias
Selon Michael
Hi,
This is a design question.
the selection of data types must be intergrated to your application.
If you have a table with :
name type
apple fruit
redcolor
a simple query like
select * from tbl where type ='fruit' will give only fruits to the users.
You can if you have mysql 5.x create
Hi,
You can't delete selected rows from the same table in mysql.
Just create a temp table containing the select result. And delete from table A
where existe select ... from temp_table;
Mathias
-Original Message-
From: Jason Pyeron [mailto:[EMAIL PROTECTED]
Sent: vendredi 2 septembre
Hi Cristi,
Look at this :
mysql select now();
+-+
| now() |
+-+
| 2005-09-02 23:15:21 |
+-+
1 row in set (0.00 sec)
mysql select DATE_ADD(now(), INTERVAL -1 DAY);
+--+
| DATE_ADD(now(),
Hi,
You can use Timediff :
mysql SELECT TIMEDIFF('2005-07-27 18:00', '2005-07-27 19:30');
+--+
| TIMEDIFF('2005-07-27 18:00', '2005-07-27 19:30') |
+--+
| -01:30:00
Hi,
You can use Timediff :
mysql SELECT TIMEDIFF('2005-07-27 18:00', '2005-07-27 19:30');
+--+
| TIMEDIFF('2005-07-27 18:00', '2005-07-27 19:30') |
+--+
| -01:30:00
Hi,
Look at having :
having count(*) 3 for example
Mathias
Selon Pupeno [EMAIL PROTECTED]:
I have esentially this query (the list of integers may differ):
SELECT `Plans`.`id`, `Plans`.`name`, count(*) as 'count' FROM `Plans` JOIN
`TechsPerPlan` ON `Plans`.`id` = `TechsPerPlan`.`plan`
Hi,
don't forget to apply the correct changes to your queries. Having NULLs or not,
let you write for example :
select ... from ... where midinials is NULL;
And be aware about NULL indexation in some storages. Those values are not
indexed for example in oracle. I'm not sure about innodb, but
From: Scottnbsp;PurcellDate: June 28 2005 3:36pm
Subject: create unique index
Hello,
I am reading the docs, but I am slightly confused.
I have a table with a varchar(50) column (not a primary column) where I =
do not want duplicates. It is a properties column, and I am getting =
Selon Kapoor, Nishikant [EMAIL PROTECTED]:
[Sorry for cross-posting.]
This is in continuation with the above mentioned subject - I am trying to
find the 'display data order' for the returned resultset. The following
thread very well answers my question:
http://lists.mysql.com/mysql/185626
Selon Kapoor, Nishikant [EMAIL PROTECTED]:
-Original Message-
This is in continuation with the above mentioned subject -
I am trying to
find the 'display data order' for the returned resultset.
The following
thread very well answers my question:
Hi,
you may use somethinh lik ethis :
$dbh-do(SET character_set_results=ujis');
look at http://dev.mysql.com/doc/mysql/en/charset-general.html
Hope that helps
Mathias
Selon Gleb Paharenko [EMAIL PROTECTED]:
Hello.
What do your 'show' statements return when you execute them from the
perl
Hi,
just Start here http://dev.mysql.com/doc/mysql/en/select.html
mathias
Selon Octavian Rasnita [EMAIL PROTECTED]:
Hi,
I have the following tables:
create table articles(
id int unsigned not null primary key,
title varchar(255) not null,
body text not null
);
create table
Hi,
have you created an index on (id, testId) ?
i can't see the other indexes ? The only ones are the PK and testStudent, so the
PK is used.
Mathias
Selon Sajith A [EMAIL PROTECTED]:
I was trying to analyze a query that was taking almost 4 seconds to
execute. While trying to create additional
Hi Sajith,
I tried to recreate you tables and do some tests, but i don't have significant
data. So i don't take your explain plan.
I suggest you to test after optimize table ... and analyze table ...
if you stay with the problem and you can give me a set of data, i'll try to help
more.
Mathias
Selon Michael Stassen [EMAIL PROTECTED]:
The PK is not used, nor should it be. Look at the EXPLAIN output.
Hi,
i hate the confusion people do between the primary key and the automatic index
on the PK.
Primary key is a generic concept for all databases. It assumes unicity and
managed data
Hi,
what's your version ? in 4.11 the two forms work :
mysql select concat(firstname,' ','lastname') from names;
+--+
| concat(firstname,' ','lastname') |
+--+
| Jean lastname|
+--+
sorry for the first select (bad copy of a string 'lastname'):
mysql select concat(firstname,' ',lastname) from names where concat(firstname,'
',lastname) like 'Jean Dupond%';
++
| concat(firstname,' ',lastname) |
++
| Jean Dupond
yes in therory. But practicaly, you always have business rules and data
knowledge without what you can do nothing.
so the substring must be constructed according to data.
Mathias
Selon Ben Kutsch [EMAIL PROTECTED]:
the substring will only work as long as you don't have spaces in the first
Hi,
this is a perl script converter for inserts to simple form. if you work from a
mysqldump, you can try it to see if the converted inserts do not genrate errors
:
http://platon.sk/cvs/cvs.php/scripts/perl/mysql/mysqldump-convert.pl
Mathias
Selon Jeremiah Gowdy [EMAIL PROTECTED]:
I have two
see this for troubleshootings :
http://sunsite.mff.cuni.cz/MIRRORS/ftp.mysql.com/doc/en/Replication_Problems.html
hope that helps
Mathias
Selon Jeremiah Gowdy [EMAIL PROTECTED]:
The inserts succeed on the master, so the problem isn't my SQL syntax. They
are legal extended inserts. It's
hi,
you didn't speakabout your tuning work on the databases with only one machine.
Have you done such work with the indexation part for best performance ?
I can tell you that several databases with about 40 Go for all is not huge.
but if you want look at some linux clustering solutions like
Hi,
just see the client connection timezone here :
http://dev.mysql.com/tech-resources/articles/4.1/time.html
you should certainly use --default-time-zone='-3:00'
Mathias
Selon Simon Garner [EMAIL PROTECTED]:
On 21/06/2005 2:45 p.m., Scott Haneda wrote:
I need to run a BETWEEN select where
1) Reading TFM (http://dev.mysql.com/doc/mysql/en/flush.html) it appears
that I do not have to 'FLUSH TABLES WITH READ LOCK' for each individual
database. This statement flushes and locks all simultaneously. Am I
correct?
HI,
to flush tables, you're right :
flush table TOTO
Hi,
Is dswu17.btconnect.com subscribed to the list with an activated login ?
Mathias
Selon Pooly [EMAIL PROTECTED]:
I try to send a message to this list with another account, but the
message came back with an error :
Your message was not delivered to:
mysql@lists.mysql.com
for the
Salut,
Quel OS, quelle version ? Quel type d'install : compile or binary
Mathias
Selon [EMAIL PROTECTED]:
Hello,
I'm trying to install MySQL and I have an error file named E103; it has 0
Ko. What do I have to do in this case?
Denisa Eustasius
PS: it's the first time I install MySQL and
as Rhino said, that's what i suggested.
mathias
Selon [EMAIL PROTECTED]:
Salut Denisa,
peux-tu essayer d'installer la 4.1.12 depuis le msi (après suppression de ce
qui
a été installé, même le répertoire) à cette url :
Hi,
SELECT @RES=data*2 AS intermediate_result,
@RES + 1 AS final_result
FROM table;
can do the trick.
Why not your method ? because it's v4.1
Mathias
Selon Tom Cunningham [EMAIL PROTECTED]:
Here's something I've been curious about:
Referring to one field from another
hi,
havant't you an automatic naming to .htm such as test.txt.htm rather than
test.txt ?
it's an upload problem. Can you access your file online ?
Mathias
Selon Brian Dunning [EMAIL PROTECTED]:
I've got a GoDaddy virtual dedicated server and I'm trying to run a
LOAD DATA INFILE, but I keep
Hi amir,
you have error 127 which means :
C:\perror 127
MySQL error code 127: Record-file is crashed
what i suggest is to use some of the solutions given here :
http://dev.mysql.com/doc/mysql/en/repair.html
if you could.
another way is to increase tmp_table_size and use show processlist during
Hu Juan,
see my answer above Re: Subselect in an Update query. You can't update and
select in a sybquery using the same table master.
use tempo table for the join and update after.
Mathias
Selon Juan Pedro Reyes Molina [EMAIL PROTECTED]:
I'm running mysql 4.1.7.
For the sake of this
Hi,
all binary docs can be inserted in blob columns.
see this link for a php insert method :http://www.phpcs.com/code.aspx?ID=30945
this is mysql doc : http://dev.mysql.com/doc/mysql/en/blob.html
Mathias
Selon madderla sreedhar [EMAIL PROTECTED]:
Sir ,
Iam working on Mysql5.0 version.
Can
hi,
the position of a record depend on the sort order you choose in your queries
(generally order by) and the execution plan of them.
this execution plan depends on data, indexes, and the query itself. So what you
call order is candidate to changing between two selects.
the method shown with
Juan,
i found you a link explaining the access and sqlserver ansi inner joins in
update. it's in german, but can be read (i don't speak german :o)) :
http://www.sql-und-xml.de/sql-tutorial/update-aktualisieren-der-zeilen.html
but i've never tried this with mysql. there are some other methods, but
Hi,
there is link take the free trial on webex site. haven't you seen the seconf
button ?
Mathias
Selon asteddy [EMAIL PROTECTED]:
Hello,
I have found Mysql Performance Tuning Seminar available for download, but I
don't know how to see it. I have found something like Webex website, but I
Mysql seminar organizer's should answer.
Mathias
Selon asteddy [EMAIL PROTECTED]:
Thank you, but why has mysql made seminars wich must be seen with a non-free
software with a 14 days trial? Is there nothing else to see it?
Asteddy
Hi,
there is link take the free trial on webex site.
Hi,
There is one caveat: It is not currently possible to modify a table and select
from the same table in a subquery.
this phrase is from
http://dev.mysql.com/tech-resources/articles/4.1/subqueries.html
solution
*
create table t as Select field1 From table1 Where field2=Some
Value
Hi,
i don't think so. 2 go is a limit of almsot 32-bits plateform, linux or others.
Migrate to 64-bits.
Mathias
Selon Brady Brown [EMAIL PROTECTED]:
Have any of you MySQL/FreeBSD cats successfully set
innodb_buffer_pool_size 2G without runing into any of the memory
allocation problems found
pretty interesting. i'll test it for oracle. But the db_cache will be a simple
swap file. i don't think it's as good as real memory for dirty lists
management.
Mathias
Selon David Griffiths [EMAIL PROTECTED]:
I'll post something I heard about when looking into upgrading Oracle 8i
from
You have also 3000 * 7 millions columns to left joins to x,y,.. others tables.
And you use myisam. this will certainly be a big update problem.
I suggest you to transform your query into :
1. select using the left joins to see first the number of rows to be updated
2. according to this number
hi,
there will not be a lot of paying backup tools if just copying files is OK.
You can't because active transactions change some files checkpoint, then you
copied files are not at the same checkpoint state, and you can't use the copy
for a restore.
The only way is to lock all the tables if you
hi,
seems to be a temp table (sybase notation).
see max_temp_table_size
Mathias
Selon Emmett Bishop [EMAIL PROTECTED]:
Howdy all, I have a question about a SQL statement
that I'm trying to execute. When I execute the
statement I get the following error: The table
'#sql_bd6_3' is full.
What
Hi,
don't you really want to write also in Times new roman your mysql data ?
you forgot the tools, OS ... (client) or it's a big jock.
Mathias
Selon nicolas ghosn [EMAIL PROTECTED]:
Dear mysql supports,
I want to change the font color for database mysql , for example I want to
insert data
sorri it's tmp_table_size.
mysql show variables like '%table%';
++--+
| Variable_name | Value|
++--+
| innodb_file_per_table | OFF |
| innodb_table_locks | ON |
| lower_case_table_names | 1|
|
Hello,
You forgot a parenthesis in the regexp function.
Second, if you construct your query with prepared statements, you can do it :
mysql insert into vt_partition(pnid) values('01234567890');
mysql select concat('vt_',pnid) into @tbl from vt_parition where pnid regexp
('^[0-9]{11}$') ;
mysql
You're welcome.
if you have more than one pnid, you should use perl or php. then use a loop to
manage each pnid query, then send it to the server, and use it's result.
another simpler solution :
mysql create table sql as select concat('vt_',pnid) tbl from vt_parition where
pnid regexp
Hi,
for the first query,
select concat(team_id,' (',sum(points),')') from games,points
where games.game_id=points.game_id
and games.team_id1=points.team_id
group by team_id
can solve the problem.
For the second, join players and points.
Mathias
Selon David Legault [EMAIL PROTECTED]:
Hello,
the already implemented solution is :
select ... for update;
a unique key gives you an error that you have to manage for updating rather than
insert.
you must catch and analyse that the error is duplicate key and not another.
but this is right if you want lauch insert without waiting to see if
different box, different versions, use export/import (backup table or LOAD DATA)
Mathias
Selon Kory Wheatley [EMAIL PROTECTED]:
I want to backup our entire Mysql database structure
for
mysql 3.23.58 and dump it in the newly installed
mysql 4.1.10
What is the best command to do a backup
see the my.cnf examples in the install dir, and look at innodb* variables.
you can migrate each table just using :
alter table toto engine=innodb;
Mathias
Selon Stembridge, Michael [EMAIL PROTECTED]:
I currently use MyISAM on an internal web application server; our data takes
up 10mb at
Hi zoltan
if you know difference between inner join and left join, you can conclude than
maybe there are a lot of rows in table1 which do not verify you join condition.
This example show you that the result is different and and add'in where clause
if you want to transform the left join result
Hi scott,
you can use datetime or timestamp. Using timestamp in this example shows you
that now() can be a default or inserted value. You can also use
current_tiumestamp.
Other functions like date_add can help you to look for rows verifying interval
days like in this example :
mysql create table
Hi,
Have you tried this ? i said the length, so you can rise it until working for
tests. I used 32k and it works without any problem. I can remind that with a
blob it works also :
mysql create table t1( asunto varbinary(32000), asun varbinary(16) );
Query OK, 0
Hi ashok,
With check, you could do iy, but they don't work with mysql.
The only solution i ican see is an application control or :
drop table if exists tempo;
create table tempo like mine;
insert into tempo values('','');
insert into mine select * from tempo where length(...)0;
drop table tempo;
Hi,
there is nothing simplier and faster than load data infile (LOCAL) since you can
connect to the server
Mathias
Selon Berman, Mikhail [EMAIL PROTECTED]:
Brian,
How about an FTP service on your remote server?
Mikhail Berman
-Original Message-
From: Brian Dunning
Hi,
you can configure bin-log on one, and send logs the second server for sync.
you will have an almost real-time synchronization env.
problem is that you MUST use inodb for ttansactions, and apply exactly the
changes to the standby server.
no replication, no cluster.
This is a simple but needed
Well Alvaro,
you can use variables to re-use resultas like that :
mysql set @rs=0;
Query OK, 0 rows affected (0.02 sec)
mysql select 1, (@rs:=2+3) as result1,
- (@rs*100) as result2
- from dual;
+---+-+-+
| 1 | result1 | result2 |
+---+-+-+
| 1 | 5 |
hi,
have you tried to hack something with week, month and weekofyear ?
there is an interesting url at
http://dev.mysql.com/doc/mysql/en/date-and-time-functions.html
be aware that the week begins on sunday.
mysql select weekofyear('2005-01-02');
+--+
|
hi,
look at insert buffer and buffer pool. This is quite interesting :
http://sunsite.mff.cuni.cz/MIRRORS/ftp.mysql.com/doc/en/InnoDB_Insert_buffering.html
mathias
Selon Manoj [EMAIL PROTECTED]:
Dear All,
I am trying to tweak some server parameters to fine tune my MySQL
(4.0.15) server
Hi,
'' or empty string is not a null in mysql. This is true for Oracle !
this simple test lets you understand :
* Without NULLs
mysql create table notnull (t varchar(10) NOT NULL);
Query OK, 0 rows affected (0.14 sec)
mysql insert into notnull values('test1');
Query OK, 1 row
Hi,
in versions less than 5.x, show table status gives informations about rows and
avg_row_length. The product gives you a correct approximation if the stats are
analyzed. This is for actions from the client.
another thing is the OS commands from your datadir (du -k).
Hope that helps.
Mathias
if you want to use excel i suppose you have also windows with more than 3 GO
free disk.
install win32 mysql
put the files in the data directory of one existing database
connect and use that database
export data to an outfile by :
select * from yourtable into outfile csv fields terminated by
Hi,
i did it. If you have myisam tables tables rather than innodb say it.
if you have specific os, say it.
i think you should elaborate, or read carrefully dev.mysql.com/doc
Mathias
Selon °l||l° Jinxed °l||l° [EMAIL PROTECTED]:
i used start transaction before using SET AUTOCOMMIT=0; also i
hi,
that's the same. If you use between, mysql do the rest for you :
mysql explain SELECT * FROM passengers WHERE
- reservation_date_time = '2005-01-01 12:10:00'
- AND reservation_date_time = '2005-05-01 12:10:00';
Hi,
thsi can be a solution, there are others :
mysql select substring(id,1,2), substring(id,3,length(id)) from mytable;
+---++
| substring(id,1,2) | substring(id,3,length(id)) |
+---++
| UP|
Hi Doug,
with a desc index on stuffed_date, an optimiezd table, the query runs in :
mysql select * from stuff order by stuffed_date desc limit 18,10;
+---+--+
| id| stuffed_date |
+---+--+
| 88233 | 2005-07-08 |
| 88228 | 2005-07-08 |
| 88218 |
Hi,
look at this :
mysql SET AUTOCOMMIT=0;
mysql start transaction;
mysql insert into inno values(2);
mysql select * from inno;
+--+
| t|
+--+
|1 |
|2 |
+--+
2 rows in set (0.00 sec)
mysql rollback;
mysql select * from inno;
+--+
| t|
+--+
|1 |
+--+
1
did'n arrive. re-submitted -- sorry
Selon [EMAIL PROTECTED]:
Hi,
If we forget the first method which i mis-adviced, i can give a third which
is
generic.
suppose that you have an indexed type column on each table (what i did).
You
can work with 3 variables. If they are different, you
resubmitted
Selon [EMAIL PROTECTED]:
hi,
that's the same. If you use between, mysql do the rest for you :
mysql explain SELECT * FROM passengers WHERE
- reservation_date_time = '2005-01-01 12:10:00'
- AND reservation_date_time = '2005-05-01 12:10:00';
resubmitted
Selon [EMAIL PROTECTED]:
Hi,
what is tour oracle version ?
such tool can be done easily if you put your oracle database in archivelog.
Be
carrefull to datatypes and create your mysql database with innodb storage.
Beginning the game, you can use LogMiner. A simple batch can
resubmitted
Selon [EMAIL PROTECTED]:
variable basedir else change a param. in what you have as file, stop start
and
see.
Mathias
Selon Ed Kasky [EMAIL PROTECTED]:
I added the line to the configuration file and removed --log-error= line
from startup line but it still creates the
Hi,
what is tour oracle version ?
such tool can be done easily if you put your oracle database in archivelog. Be
carrefull to datatypes and create your mysql database with innodb storage.
Beginning the game, you can use LogMiner. A simple batch can extract the redo
SQL statements and apply them
hi ,
see -skip-grant-tables in dev.mysql.com/doc
Mathias
Selon Seena Blace [EMAIL PROTECTED]:
Is there any way I can change passwd of database without knowing the
administrator .
I'm unable to get into the mysql prompt due to access denied message.I want
to change passwd.How to do this?
Hi,
you transaction is implicit, so there has been an autocommit.
Look at this example !
mysql start transaction;
^^
mysql load data infile 'd:\\ldfile.txt' into table ldfile;
Query OK, 3 rows affected (0.00 sec)
Records: 3 Deleted: 0 Skipped: 0 Warnings: 0
mysql
variable basedir else change a param. in what you have as file, stop start and
see.
Mathias
Selon Ed Kasky [EMAIL PROTECTED]:
I added the line to the configuration file and removed --log-error= line
from startup line but it still creates the /usr/local/mysql/var/yoda2.err
as well as
Hi,
If we forget the first method which i mis-adviced, i can give a third which is
generic.
suppose that you have an indexed type column on each table (what i did). You
can work with 3 variables. If they are different, you query for a join, if they
are equal, you transform the join to a simple
The second method is dynamic sql with prepare statement from string.
It's better for the reason that the query is generated to retrieve data from
just one table (not an union which implies 3 tables).
The day your tables will be huge, i'm sure you will use the second method.
two crazy people can
Hi,
i and i think all people will think the same : i can't help. why ?
have you described your tables ?
have your given the size of each table ?
have you list the indexes ?
have you specify the storage type ?
and
have you given the query ?
if you're looking for just a theoritical response,
Hi,
load data infile tries to load data from specified directory on the server.
if your file is on the client, try LOAD DATA LOCAL and verify the parameter
--enable-local-infile
more details are in http://dev.mysql.com/doc/mysql/en/load-data-local.html about
data on the web server.
Nota bene :
But i give you a suggestion (theoritical) :
if data are reverse sorted , LIMIT 18, 10 will be LIMIt 2, 10
who knows ?
Mathias
Selon [EMAIL PROTECTED]:
Hi,
i and i think all people will think the same : i can't help. why ?
have you described your tables ?
have your given the size
I agree with you,
just see that if ..
sql = SELECT id, '$cat' AS type, ... FROM $cat;
is exactly what is done in prepare statement.
dynamic sql is better than application level statement preparation, when you use
stored procedure. but since this is the a habit in mysql, i'll keep this for
oracle,
select
LIMIT 50;
mathias
Selon Brian Dunning [EMAIL PROTECTED]:
I am using a routine to find 50 random records in a large MySQL
database (about a million records) where I generate a list of 50
random unique ID's, and then use MySQL's in command to find them. I
can't use order by rand()
image ?
you're modifying row n, node x wants to modify it, you need a rollback segment
for that ! which value node x will read.
i'm considering every DML is a transaction in an RDBMS, so when you say that you
don't use transactions, you miss something.
about load balancing, how do you track long
Hi Sebastian;
There is always crazy things somewhere.
I'll give you two methods for that :
mysql select id,'news' as selected, type from news
- union select id,'faq' as selected, type from faq
- union select id,'forum' as selected, type from forum;
+--+--+---+
| id |
Hi,
you can use a hint to force specific index usage :
http://lib.hutech.edu.vn/ebookonline/ebook1/0596003064/hpmysql-CHP-5-SECT-4.html
But this is not a good idea since data change and index selectivity can become
bad.
Also, if the index scan + the table scan is bigger than a full table scan,
Hi,
Status;
gives your own session id. To be combined to show innodb status (ksh or perl).
Mathias
Selon Frank Schröder [EMAIL PROTECTED]:
[EMAIL PROTECTED] wrote:
Frank Schröder [EMAIL PROTECTED] wrote on 05/31/2005 03:18:11 AM:
Hello,
I have an InnoDB table running on MySQL 4.1.11
Hi Scott,
you may be int his case : http://bugs.php.net/bug.php?id=32882
can't reproduce it because of env lack
Mathias
Selon Scott Klarenbach [EMAIL PROTECTED]:
You guys have been so helpful with this, I'm hoping that I can ask for
one more favor...
The reason I needed the greatest(max())
Hi,
i think that client load-balacer are more Dispatchers than real load balancer.
load balancing in the database side takes care to number of connections, but
also node load. So thisis more real. But this issue is difficult.
even for oracle with 9iRAC and 10gRAC, load balancing is not
Hi,
since reading blobs is not a simple action (heavy), you must store the size of
every file in the table's structure.
if you write with php, somthing like that filesize($binFile) gives you the
column value for every insert
When done, a simple order by filesize gives you what you want before
hi,
look at :
usr/bin/mysqldump --defaults-extra-file=/.../backup-credentials.cnf
in
http://dev.mysql.com/doc/mysql/en/mysqldump.html
add the port, protocol,password
mathias
Selon Gu Lei [EMAIL PROTECTED]:
Hi
It's my first time using mysqldump.
[EMAIL PROTECTED] mysql]$ mysqldump -uroot
Hi,
try stop server, cold copy to dev server, start on dev.
mathias
Selon ManojW [EMAIL PROTECTED]:
Greetings,
I took a dump of (pretty chunk) database, the output is close to 45G. I
am trying to reload this dump file onto a development server but it's
taking long time to load the
hi,
mls_num is not in a key, have you tried index creation on (zip,price
desc,mls_num) ?
mathias
Selon Scott Gifford [EMAIL PROTECTED]:
Johan Höök [EMAIL PROTECTED] writes:
Hi Scott,
I think you've been lucky so far...
As you're only ordering on listdate, which is the same
for both
Hi,
Try just :
SELECT id_secr_rqst task_id, MAX(dt_aud_rec) AS latest
FROM isr2_aud_log WHERE
name_rec_type = 'Assignment' AND id_secr_rqst
='TASK23C6054B9D416C08:1284FD4:103FB047DF1:-7ECF'
GROUP BY id_secr_rqst
;
++-+
| task_id
NO
Selon Jerry Swanson [EMAIL PROTECTED]:
Does Mysql 4 supports views?
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Hi René,
thsi can be a solution, many others are possible :
mysql select distinct the_date, person_id, cost, name
- from trips,persons
- where person_id=persons.id
- and the_date in(select max(the_date) from trips a
- where a.person_id=person_id
- group by person_id)
-
you can also try to increase the value of the tmp_table_size variable.
A+
Selon [EMAIL PROTECTED]:
You have a sort because you did an order by.
If you had an index with the desired order by, it may be used.
Try as you usage of covering indexes.
you certainly know that one multi-column
I say this :
Enter password: ***
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1 to server version: 4.1.11-nt-max-log
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql status
--
mysql Ver 14.7 Distrib 4.1.11, for Win32
You have a sort because you did an order by.
If you had an index with the desired order by, it may be used.
Try as you usage of covering indexes.
you certainly know that one multi-column index is similar to a lot of
multi-column others when desired columns are in the right position of columns
hi,
your config supports european charcters :
mysql select * from tst;
+--+---+
| a| txt |
+--+---+
|1 | Ceci est un test en Français
hi,
have you installed php4-mysql ?
look at http://www.coagul.org/article.php3?id_article=169 for example.
Mathias
Selon bruce [EMAIL PROTECTED]:
hi...
trying to build php4 with mysql4.1-12, for use in apache2. i have the
following ./compile that works for php5. however, when i try to use
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