Hi,
I am searching for a query where i can have pattern matching without
considering the cases.You can consider the following example for detailed
description of what i want exactly.
Let my table X consists of following data
Name
---
venu
venup
venugopla
VenugOpal
VENU
-Original Message-
From: VenuGopal Papasani [mailto:[EMAIL PROTECTED]
Sent: Monday, March 13, 2006 10:33
To: mysql@lists.mysql.com
Subject: Help regarding a simple query
Hi,
I am searching for a query where i can have pattern
matching without considering the cases.You can
Now i need to get all the records which consists of the string
venu(case should not be considered either case should be).i.e i should get
1,2,3,4,5,8 records
A simple way is ...
...
WHERE LOCATE('venu', col_name ) 0
...
or if the column is [VAR]BINARY, LOCATE('venu',CAST(col_name AS
-Original Message-
From: VenuGopal Papasani [mailto:[EMAIL PROTECTED]
Sent: Monday, March 13, 2006 11:48
To: Jeff
Subject: Re: Help regarding a simple query
Hi Jeff,
This is venu again.Last mail i did not include a constraint that is
what irritating me most.Actually if i got venu-kkk
Hi Guys,
I'm still new to this and I'm trying to get back into and I need help with a
simple query. I have a list of info about a product for an article on my
website and I'm pulling all this info from a mysql db and displaying it
byway of php but don't know how to do the query. Right now I have
Hi Guys,
I'm still new to this and I'm trying to get back into and I need help with a
simple query. I have a list of info about a product for an article on my
website and I'm pulling all this info from a mysql db and displaying it
byway of php but don't know how to do the query. Right now I have
SELECT * from hwu_articles WHERE id = '$id' and price is not null and name
is not null and ratings is not null;
Bhavin.
- Original Message -
From: Alex Behrens [EMAIL PROTECTED]
To: MYSQL [EMAIL PROTECTED]
Sent: Friday, August 02, 2002 4:49 PM
Subject: help with a simple query..
Hi
I have 2 tables:
bases, and properties
base has a ZIPCODE field in the table, as does the properties table.
I'm trying to find all bases that do NOT have a property in that zip code.
What I've tried is:
select distinct cb.*, cp.* from classified_bases as cb left join
classified_properties as
I have 2 tables:
bases, and properties
base has a ZIPCODE field in the table, as does the properties table.
I'm trying to find all bases that do NOT have a property in that zip code.
What I've tried is:
The general answer:
http://www.bitbybit.dk/mysqlfaq/faq.html#ch7_10_0
In your case,
Try this. I couldn't find if MYSQL supports not in's so I followed there
outer joins. You can read up on in in the mysql manual, do a search on
outer joins.
select base.zipcode,properties.zipcode from base right join properties on
base.zipcode=properties.zipcode where base.zipcode is null;
On
Hi,
Ok, I'm out of ideas. The additional index should have sped things up,
not
slowed them down. I've got some tables with 26,000 rows in it and I do 4
joins (using a WHERE clause) with smaller tables without a hitch.
Sorry I can't help.
But thanks a lot for trying. :) And thanks also to
Hi everyone,
I'm stuck on one issue which is preventing me from using MySQL in production
on one particular database. (This is similar to my last post but this time
I'll explain better what I'm attempting to do.)
I'm trying to create a database of filenames and directories using MySQL. I
have
A .03 sec left join PREVENTS you from using MySQL.
This must be a troll.
You have no where clause, so no index is used.
Jordan Russell wrote:
Hi everyone,
I'm stuck on one issue which is preventing me from using MySQL in production
on one particular database. (This is similar to my last
A .03 sec left join PREVENTS you from using MySQL.
This must be a troll.
Sigh...
I guess I failed to mention this was a deliberately simplified example in
order to pose my question in a easy-to-understand manner. In reality, there
are much more records, and a more complex query, where the
You have no where clause, so no index is used.
Oops, missed this part.
Where exactly do I need a WHERE clause, and for what? The first query
doesn't have a WHERE clause and yet it appears to be using the "date" index.
Jordan Russell
Hi,
Thanks for the reply.
Hve you read
http://www.mysql.com/documentation/mysql/bychapter/manual_Performance.html#L
EFT_JOIN_optimization
?
Yes, many times, as well as just about everything else in the Performance
chapter. Am I missing something totally obvious? Should I even be using a
LEFT
were your results?
Cal
http://www.calevans.com
-Original Message-
From: Jordan Russell [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 12, 2001 2:27 PM
To: Cal Evans
Cc: [EMAIL PROTECTED]
Subject: Re: Need help optimizing this (simple) query
Hi,
Thanks for the reply.
Hve you read
http
Everything I've seen on this list indicates that using LEFT JOIN negates
using an index. (WARNING: This is 3rd hand info and as such should be
viewed
skeptically!)
Have you tried:
SELECT files.id, dirs.name FROM files where files.dir_id=dirs.id
ORDER BY files.date DESC LIMIT 1;
If so,
(dir_id),
to the above.
Cal
http://www.calevans.com
-Original Message-
From: Jordan Russell [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 12, 2001 2:48 PM
To: Cal Evans
Cc: [EMAIL PROTECTED]
Subject: Re: Need help optimizing this (simple) query
Everything I've seen on this list indicates
Jordan Russell wrote:
Everything I've seen on this list indicates that using LEFT JOIN negates
using an index. (WARNING: This is 3rd hand info and as such should be
viewed
skeptically!)
Have you tried:
SELECT files.id, dirs.name FROM files where files.dir_id=dirs.id
ORDER BY
/* This table has 5000 rows */
CREATE TABLE files (
id int(11) NOT NULL auto_increment,
dir_id int(11) NOT NULL default '0',
name varchar(100) NOT NULL default '',
date datetime default NULL,
PRIMARY KEY (id),
KEY date (date)
) TYPE=MyISAM;
for grins and giggles, add:
key
Message-
From: Jordan Russell [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 12, 2001 3:07 PM
To: Steve Ruby
Cc: Cal Evans; [EMAIL PROTECTED]
Subject: Re: Need help optimizing this (simple) query
Do you have an index on files that starts with dir_id and
an index on dirs that stats with id
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