MySQL converts MYSQL_TYPE_LONG to float before storing
http://dev.mysql.com/doc/refman/5.1/en/c-api-prepared-statement-datatypes.html
you may want to consider FIXED size datatypes for that requirement e.g.
unsigned long *length
HTH
Martin
__
basically the same criteria as IN vs EXISTS from
http://decipherinfosys.wordpress.com/2007/01/30/in-vs-exists/
select select column list from TABLE_A where col1 in (Select col2 from
TABLE_B)
VS
Select select column list from TABLE_A where exists (select
Ben-
did'nt see your solution?
Martin
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recipient, we kindly ask you to please inform the sender. Any unauthorised
dissemination
SELECT bunch_of_columns FROM bunch_of_tables
WHERE MATCH (memos.note_text)
AGAINST ('frog' IN NATURAL LANGUAGE MODE);
You may want to consider implementing lucene for search engine capability
http://lucene.apache.org/java/docs/
?
Martin
__
Jim
can you verify the process is quiesced from MySQL (master)
mysqlSHOW PROCESSLIST
?
Martin
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recipient, we kindly ask you to
what does the master db show for processlist ?
master_mysqlshow processlist
?
Martin
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recipient, we kindly ask you to please
there is no character matrix supported in the SQL92 spec located at
http://www.contrib.andrew.cmu.edu/~shadow/sql/sql1992.txt
also there is no Truth Table for but there IS a truth table for AND
conditionals.
Martin
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will you be supporting clusters?
if not you can scan for listeners on 3306
HTH
Martin
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---
if.id f.cnt fm.id fm.cnt
-- - -- ---
1 1NULL 0
2 22 2
Martin Gainty
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Jason-
can we see the schema and a few data rows for `soapware_charts_xmldocumentitems`
says something about invalid pointers?
Martin
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Jose-
preface the product_id column with table ID e.g.
table_1.product_id
table_2.product_id
or use the alias assigned to tableName
Saludos Cordiales desde EEUU
Martin
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I vote for 1 table per TableType
this will keep your DB schema consistent with Architecture
Martin
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My current understanding of the delta between Views and Temporary Tables
Views are read only results from 1 or more tables ..in Oracle they are stored
in TEMP tablespace
http://www.psoug.org/reference/views.html
Temporary Tables are tables which are created/updated/inserted and exist only
for
ON condition uses the same columnname from both source and target tables
whereas any column expressions can go in the WHERE clause...
Martin
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Jason
try
select ADDRESS FROM FUBAR_TABLE WHERE MOD(TO_
NUMBER(SUBSTR(ADDRESS,1,instr(ADDRESS,' ',1))),2) =0;
SUBSTR(ADDRESS,1,INSTR(ADDRESS,'',1))
1232 Main
1234 Main
HTH
Martin
Dan-
I would concentrate on SQL certification first
To know package foo does bar method for MySQL is a good extra tool to have in
your toolbelt
but more important for the bigger companies to be able to use your skillset for
MySQL AND DB2 AND Oracle
Martin
UNION all does a cartesian join ..maxiumum number of results will be delivered
SELECT *
FROM sites
INNER JOIN sites.userid = users.ID;
-- INNER JOIN users ON sites.userid = users.ID
--ALSO put (hopefully UNIQUE indexes) on sites.userid and users.id
Martin
Jim-
you can try to port Oracles utldtree.sql
Caveat Emptor: Hasnt been worked on since 92 and is VERY buggy!
Martin Gainty
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from a purely network point of view PING works if ICMP traffic is allowed
do a tracert and find out which intervening node is rerouting the traffic
you might have something funky on the routing tables
Martin
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if Memory serves the LIBCMTD.lib library that you're excluding IS the
MultiThreaded Library?
Generally if you can run it thru debug you can get the CodeStack and
InstructionPointer which will at least point to the exact location where it
abended
Saludos Cordiales desde EEUU!Martin
If you're not going to Cascade Delete you'll need to change ON DELETE CASCADE
clause to ON DELETE SET NULL e.g.
change
FOREIGN KEY(id_b) REFERENCES b(id) ON DELETE CASCADE
TO
FOREIGN KEY(id_b) REFERENCES b(id) ON DELETE SET
NULLhttp://dev.mysql.com/doc/refman/5.0/en/delete.html
Martin
Happy New Year Mike-
JOIN USING(colId) and or JOIN ON(table1.colId=table2.colIdentifier) will
preserve the use of Indexes which is faster
LIKE casts off Indexes and does a FTS
HTH
Martin
Any recommendations on non-PHP Forum Software for Apache?
__
Jerry is correct you are better off using the pre-packaged installer from the
MySQL distro
for the most part you are downloading (binaries) from some site
creating a MYSQL_HOME environment variable to point to home folder for MySQL
unzipping/uncompressing the distro to the MYSQL_HOME folder
make
:
Thanks, Martin, but that's not it. As I mentioned in my email, I'm running
as MySQL root user with all priv bits set. I tried your suggestion anyway,
but no change.
Cheers,
- Brad
On Fri, Dec 5, 2008 at 4:34 PM, Martin Gainty [EMAIL PROTECTED] wrote:
Brad-
log
instead of
SELECT name, (CASE WHEN bar = 34 THEN 0 ELSE 1 END) AS rank FROM foo WHERE
bar = 34 OR baz 100 ORDER BY rank ASC, baz DESC LIMIT 5;
you can use order the query evaluation to perform inner subquery first
select distinct foo.name,foo.bar,baz.bar from foo where exists (select *
as UNIONS may cause FTS you might want to look at using
JOIN USING(ColumnWhichIsCommonForEveryTable)
(then place unique Indexes on each of the Columns for all Tables)
Martin
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generally no as join conditions do not guarantee
1)the column to be inserted is unique
2)the column is updatable
//Create a View based on 2 tables joined on location+id
CREATE VIEW locations_view AS
SELECT d.department_id, d.department_name, l.location_id, l.city
FROM departments d,
Quiesce ALL slaves if you have master/slave DB's
Once you've implemented explain plans..check any SQL statements which produce
Full Table Scans
If so You'll want to implement Indexes on compsite columns for those join
conditions to implement a Unique Constraint
you will need to extract out the
service usually indicates a background service such as Windows Service
MySQL implements Windows Service Functionality thru
mysqld-nt binary documentation is available at
http://dev.mysql.com/doc/refman/5.0/en/multiple-windows-services.html
a server is a standalone binary or even possibly a
I would say providing a table to retain the users relevant details especially
after marking as deleted would be a logical choice
Martin Gainty
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Hi Eric-
the immediate challenge is to fic the join statement so
make sure products.id is indexed
make sure browse_nodes_to_products.product_id is indexed
make sure browse_nodes_to_products.browse_node_id is indexed
make sure browse_nodes.amazon_id is indexed
there seems to be
2 items-
check that the my.cnf file cannot be found on your path
or your server groups are (usually just server, client) are incorrect
Martin
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Agador-
Thats LOT of errors
I would recommend using the error log to determine whats causing these errors
(and then fix)
HTH
Martin
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2 items
I would increase bump key_buffer_size as suggested here
http://dev.mysql.com/doc/refman/5.1/en/delete-speed.html
also TRUNCATE instead of DELETE where TRANSACTION is not active
Martin
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Everything in
.
As for cron jobs, I have a number of command-line PHP scripts
that perform regular queries. They've been running for about 10
days now. The current high CPU state started a couple days ago.
On 22-Sep-08, at 8:30 PM, Martin Gainty wrote:
curious if you have any cron jobs
in my.cnf configuration file try upping the number of connections
max_connections=3072
to
max_connections=6144
Martin
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of Sender.
Dave-
we havent had a hurricane since up here since 1938..if you want to relocate
your servers just give a holler
and i'll lend you mine!
Martin
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Date: Wed, 17 Sep 2008 13:14:36 -0500
From: [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Subject: Re: Show Master Status
On Wed, Sep 17, 2008 at 12:54 PM, Martin Gainty
unless you cant spare a few milliseconds off of each insert..
i strongly suggest to use autoincrement
http://dev.mysql.com/doc/refman/5.0/en/example-auto-increment.html
Martin
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can you provide a testcase would justify 2 different DB schemas?If you're
willing to stay with identical configurations take a look at
http://dev.mysql.com/doc/refman/5.0/en/replication.htmlHTHMartin
__ Disclaimer and confidentiality
note Everything
The key_len column indicates the length of the key that MySQL decided to use.
The length is NULL if the key column says NULL. Note that the value of key_len
allows you to determine how many parts of a multiple-part key MySQL will
actually use.
i do not know the definition of parameter
you can use GRANT statement to create and grant privs for a mysql db so users
can access specific host DB servers @'server.domain' specific DB on specific Db
Servers 'custom'@'server.domain'specific tables on specific DB customer.*
specific privs
also set the location of the binary$MYSQL = '/usr/local/bin/mysql';#
path to mysql
executablehttp://dev.mysql.com/doc/refman/6.0/en/installing-binary.htmlbefore
invoking the binarybin/mysqld_safe --user=mysql
(good call madan)Martin-__ Disclaimer
addresses the case for using ENUM over VARCHAR for low cardinality columns
For performance issues on which sort algorithm does a join select is addressed
at
http://dev.mysql.com/doc/refman/5.0/en/index-merge-optimization.html
?
Martin
__
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could'nt get database listings to display..all other commands and requests seem
to work fine
Tack!
Martin
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of Sender. This
agador-
did you look at replication implementations using master/slave configuration?
http://dev.mysql.com/doc/refman/5.0/en/replication-solutions-diffengines.html
HTH/
Martin
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you'll need to set the datetime function before presenting date/time to the user
http://www.w3schools.com/php/func_date_default_timezone_set.asp
Martin
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Good Morning Mike and Brent
Ive been following and implementing MYSQL tuning suggestions at
http://dev.mysql.com/doc/refman/5.1/en/innodb-tuning.html
I did'nt see any suggestions on converting the entire DB to INNODB
or converting the individual tables to INNODB
Suggestions?
Martin
the only possible suggestion i have would be to disambiguate the selected
columns with 'as'
insert into games2 (sea_id,date,time,loc_id,hteam,vteam,div_id)
(
select
'36' as sea_id, game_date as date, begin_time as time, loc_id as loc_id,
home_team_id as hteam, away_team_id as vteam,
: Martin Gainty [mailto:[EMAIL PROTECTED]
Sent: Saturday, August 16, 2008 9:50 AM
To: Andy Shellam; Steven Buehler
Cc: mysql@lists.mysql.com
Subject: RE: Multiple Query/Insert help
the only possible suggestion i have would be to disambiguate the selected
columns with 'as'
insert
I am certain the SQLBrowser program authors want to hear about this error
It may be due to the fact that MYSQL procedures need to have a different
delimiter
(//) instead of ;
e.g.
use DBNAME;
DROP PROCEDURE IF EXISTS TABLE_NAME;
delimiter //;
Anyone?
Martin
If you want MYSQL to process the SELECT, including information about how tables
are joined and in which order
usehttp://dev.mysql.com/doc/refman/5.0/en/using-explain.htmle.g. EXPLAIN
[EXTENDED] SELECT select_optionsIf you want MySQL uses the stored key
distribution to decide the order in
I'm seeing this more and more
I'm hearing the justification that its easier to put an pre-formatted anchor
tag or href but you're right
if html is stored in the DB then javascript can easily follow
of course the overseas contractors sticking in href to their own sites sure
does'nt help
Glad to
John and Dan-
would have to see your constraint statement preferably the CREATE TABLE
statement to make any kind of intelligent assessment here..
Martin Gainty
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How do I get mysqldump to turn off quotes e.g from
INSERT INTO table
to
INSERT INTO table
Thanks
Martin Gainty
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of Sender
Pawel-
the syntax is
GRANT USAGE ON DB.* to '[EMAIL PROTECTED]' IDENTIFIED BY PASSWORD
'NeverShowYourPasswordInEmail'
http://dev.mysql.com/doc/refman/5.0/en/grant.html
HTH
Martin Gainty
__
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Everything in this e
I would start by understanding MySQL spatial located at
http://dev.mysql.com/doc/refman/5.0/en/spatial-extensions.html
FWIWMartin__Disclaimer and
confidentiality noteEverything in this e-mail and any attachments relates to
the official business of
Good Morning Steve
The insertion of comma in your Data works if your columns are VARCHAR and
you have place Data Value in 'tick marks'
e.g.
mysql alter table test CHANGE test test VARCHAR(100);
Query OK, 1 row affected (0.03 sec)
Records: 1 Duplicates: 0 Warnings: 0
mysql commit;
Query OK, 0
Waynn-
does the OS user you use to execute mysql have create/write/read/execute
rights to the ./test folder?
Martin-
- Original Message -
From: Waynn Lue [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Saturday, March 08, 2008 6:58 AM
Subject: Can't drop database that shows up in show
my understanding is that Namespace is a defined grouping of classes
http://m5.eecs.umich.edu/docs/namespaceMySQL.html
where MySQL triggers a namespace must be unique within the schema
(database).
http://markmail.org/message/m5icpi2luv6baijt?q=Joerg+Bruehe+AND+namespace
You're always safe using your own localhost (127.0.0.1) but
You probably want to re-think using a dynamically assigned address such as
192.168.xxx.xxx which can change anytime
FWIW
Martin-
- Original Message -
From: Hiep Nguyen [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Monday,
http://dev.mysql.com/doc/refman/5.0/en/schemata-table.html
According to MYSQL doc:
A schema is a database
Wikopedia says a Schema is defined as:
Pronounced as skee-ma, the structure of a database system, described in a
formal language supported by the database management system (DBMS). In a
Good Morning Eli
I would consider implementation of mpm_common more specifically enabling
inter process communication with mutex's such as what you see at
http://httpd.apache.org/docs/2.0/mod/mpm_common.html#acceptmutex
and then utilising the flock directive to either lock/unlock a file such
Did you get a chance to look at mysqlhotcopy?
http://dev.mysql.com/doc/refman/5.0/en/mysqlhotcopy.html
?
M-
- Original Message -
From: P. Evans [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Friday, February 15, 2008 11:50 AM
Subject: [EMAIL PROTECTED] locations
Greetings,
I've
Michael-
I can certainly understand the upgrade based on the performance advantages
of MySQL
What would NASA use for its mapping GIS/Mapping software?
Postgres has PostGIS
Oracle has OracleSpatial
MySQL has ?
Many Thanks for the link
Martin--
- Original Message -
From: Michael Cole
http://drupal.org/project/convert2drupal
NB:
no pending tasks AND
no developers working on any part of the project
the author claims a release in january (but has'nt published anything yet..)
Looks like you there is some work ahead of you..
Oi Vay!
- Original Message -
From: Sharique
the default DB is mysql
to verify execute mysql client and then show the databases
mysql show databases;
++
| Database |
++
| information_schema |
| catalog|
| mysql |
| petclinic |
| test |
3 ideas come to mind-
cron and or cruisecontrol for off-hours scriptingant for handling
cross-platform scriptingmaven for implementing dependency checking as well as
the ability to pull from online repositories
Youtube.comI worked with a company last summer that implemented identical
the simple answer is and b.name='name3' ?Bon
ChanceMartin__Disclaimer and
confidentiality noteEverything in this e-mail and any attachments relates to
the official business of Sender. This transmission is of a confidential nature
and Sender does not
Good Morning Ben
this is an acknowledged bug
http://bugs.mysql.com/bug.php?id=20090
which was fixed in 5.1.22-beta +
can you upgrade?
Martin--
- Original Message -
From: Ben Clewett [EMAIL PROTECTED]
To: mysql@lists.mysql.com
Sent: Friday, December 21, 2007 4:52 AM
Subject: Odd item in
: Tomas Hylander [EMAIL PROTECTED]
To: Martin Gainty [EMAIL PROTECTED]
Cc: mysql@lists.mysql.com
Sent: Monday, November 26, 2007 1:38 AM
Subject: Re: Problem with a Procedure
Hi!
I must say I cant see how this would help me. I know the tabels isnt
empty since when running in query browsern I get
Artem
set
my.cnf in unix
my.ini in windows
set max_connections
max_connections=100
M--
- Original Message -
From: Steven Buehler [EMAIL PROTECTED]
To: 'Artem Kuchin' [EMAIL PROTECTED]; mysql@lists.mysql.com
Sent: Friday, December 07, 2007 8:11 AM
Subject: RE: How to auto repair db on
mysql select idea.iid, concat(employee.first, ,employee.last),(SELECT
concat(
employee.first, ,employee.last) FROM EMPLOYEE where
employee.eid=idea.submitted_by) from ide
a,employee where idea.iid=1 and idea.completed_by=employee.eid;
M--
- Original Message -
From: Hiep Nguyen [EMAIL
persisting session-specific configuration items to system wide data stores
does appear to be problematic..
perhaps sujatha could explain the reasoning behind this shift?
M-
- Original Message -
From: B. Keith Murphy [EMAIL PROTECTED]
To: 'mysql list' mysql@lists.mysql.com
Sent: Tuesday,
You seem to have an over-reliance on BTREE Indexes over BITMAPPED Indexes or
HASH Indexes
There are specific rules governing implementation of BTREE Index
http://download-east.oracle.com/docs/cd/B19306_01/server.102/b14220/schema.h
tm#sthref893
As well as specific rules governing use of HASH
Dave is trying to establish an algorithm which would fit your requirement
I can see column q is auto-increment which makes sense as you retain the
capability to generate a unique row but jumping into the middle of a
conversation without knowing the prior discussionWhat is/was/will be the
Hi Jim
it seems that you cannot create an index with a function soyou will need to
establish a separate 12 character column which has all of the URL entries
insertedalphabetically in ascending order (fully padded with www. prefix)backup
your DBALTER TABLE table ADD TwelveCharacterURL
Tomas-I would effect a quick iterative check on the table(s) to see if they are
empty e.g.
SELECT count(trans2.nettovikt) from trans2;
(If recordcount0) then
SELECT SUM(trans2.nettovikt) FROM trans2 INNER JOIN artikel on
trans2.artikel=artikel.artikel
(If recordcount0) then
SELECT
Morning All-
I connect to Mysql 4.0.13 using mysql_connect AND returned handle is not
false
then I call access to mysql_select_db which always returns NULL and causes
Exception
I also tried mysql_connect with supplied 4th param as DB with no joy
The DB name is uppercase..does this matter?
Hodren
How are you storing the image in MySQL..I assume longblob?
What format will you use to display the image {jpg|gif|png}?
Here is a script which will load the images to your AS movie
http://www.actionscript.org/forums/showthread.php3?t=76421
HTH/
Martin
This email message and any files
Richard-
If you have 2 or more servers which you want to dedicate to MySQL you may
want to look into MySQL Clustering
To focus on sync'ing I would read about the the 'syncronisation replication'
vs 'asynchronous replication' that the Participating Nodes employ
You are attempting to login as ODBC
If your scripts are using ODBC as the USER you will need to CREATE USER ODBC
and GRANT necessary privs doc available at
http://dev.mysql.com/doc/refman/5.0/en/adding-users.html
M--
This email message and any files transmitted with it contain confidential
Good Evening David-
Have you considered using Lucene ?
http://lucene.apache.org/java/docs/
M--
This email message and any files transmitted with it contain confidential
information intended only for the person(s) to whom this email message is
addressed. If you have received this email message
Good Afternoon David
sounds as if you have a number of non-unique indices (even possibly FTS!)
slowing down queries..this should help you concentrate on the slower indices
mysql
select TABLE_NAME,COLUMN_NAME,INDEX_NAME from INFORMATION_SCHEMA.STATISTICS
where NON_UNIQUE=1;
Anyone else?
I would wait until your DB is offline (such as on a weekend)
Once you find the Character Set you want e.g. greek_general_ci
http://dev.mysql.com/doc/refman/5.0/en/charset-se-me-sets.html
then alter your DB to use that character set
http://dev.mysql.com/doc/refman/5.0/en/charset-database.html
Good Morning Lucas
From what i've been able to gather
Type 3 is a bridging technology which accomplishes the ODBC-JDBC
communication objective but is
slower than native Type 4 thin client driver counterpart as there are a min
of 3+ components which are used
ODBC
Bridge
JDBC
Best doc I've
needs an indication on where to find the file (local or otherwise)
http://dev.mysql.com/doc/refman/5.1/en/load-data.html
For security reasons, when reading text files located on the server, the
files must either reside in the database directory or be readable by all.
Also, to use LOAD DATA
14, 2004 8:41 AM
Subject: Re: Q: outer join w/restriction
In article [EMAIL PROTECTED],
Martin Gainty [EMAIL PROTECTED] writes:
You should generally not have any conditions in the ON part that are
used to restrict which rows you want in the result set, but rather specify
these conditions
A SQL AND is a restrictive filter
In other words
Your resultset will yield results based on how you structure your query
If you structure your resultset which includes only applicants who have been
seen by Reviewer2 then state
SELECT ... FROM
WHERE (CONDITION1 AND Applicant.Reviewer = 'Reviewer2')
]
To: Martin Gainty
Cc: [EMAIL PROTECTED] ; [EMAIL PROTECTED]
Sent: Wednesday, October 13, 2004 10:33 AM
Subject: Re: Q: outer join w/restriction
Martin, you are correct in how you determine when to use AND and when to use OR, but
that's not what the original query was trying to find
Also International Numbers
Have you seen any address books accomodating 3 digit Country Code??
Martin-
- Original Message -
From: [EMAIL PROTECTED]
To: Chris W. Parker [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Tuesday, October 12, 2004 1:20 PM
Subject: RE: help with table structure
John
You will have to soemthing similar to Oracle Decode
Martin-
- Original Message -
From: John Mistler [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, October 10, 2004 9:23 PM
Subject: Enforce value on select
Is there a way to force SOME value to be returned from a SELECT query
Dominic
Take a look at the steps necessary to connect to MySQL
1)Server running
2)Setting up GRANTS
3)Setup users and access permissions
http://dev.mysql.com/doc/mysql/en/Access_denied.html
HTH,
Martin-
- Original Message -
From: Dominic James [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent:
Also keep in mind that if you have XP SP2 installed all of your ports are
blocked (except Port 80 of course)
You will need to reconfig the Firewall available in Control Panel
specifically TCP 3306 4759
BTW: It would be helpful to place Port Assignment information in System
Requirements
I found it
David-
Think of A join consists of one circle of records per table
An INNER JOIN only gets the results that are in common between 2 tables or
all the rows
(where the circles intersect)
i.e.
In an Inner Join both columns of Both Tables MUST have Non Null identical
values and Must be =
An OUTER JOIN
is there way to interrogate what is inside a column specifically a special
character?
thanks,
Martin Gainty
_
Express yourself instantly with MSN Messenger! Download today - it's FREE!
http://messenger.msn.click-url.com/go
David-
try redeclaring your INTEGER columns as BIGINT instead of INTEGER
http://dev.mysql.com/doc/mysql/en/Numeric_types.html
HTH,
Martin Gainty
From: David Mohorn [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: T-SQL SUM() Overflow?
Date: Mon, 16 Aug 2004 11:37:12 -0500
MIME-Version: 1.0
My original concept to use group by was
GROUP BY(MajorColumnGroupIng...MinorColumnGrouping)
I am trying to be convinced that
GROUP BY(Minor..Major) will work just as well
Is there a difference???
thanks,
Martin Gainty
From: Joe Kislo [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: Mysql 4.0.20
://archives.postgresql.org/pgsql-performance/2002-12/msg00185.php
HTH,
Martin Gainty
From: Andrew Dixon [EMAIL PROTECTED]
To: 'Stephen E. Bacher' [EMAIL PROTECTED], [EMAIL PROTECTED]
Subject: RE: In Statement Help
Date: Tue, 3 Aug 2004 12:27:25 +0100
MIME-Version: 1.0
Received: from lists.mysql.com
is Indexed-
Martin Gainty
From: Michael Stassen [EMAIL PROTECTED]
To: Martin Gainty [EMAIL PROTECTED]
CC: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED]
Subject: Re: In Statement Help
Date: Tue, 03 Aug 2004 10:26:29 -0400
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