> > But you can't get a group by from an alias.
>
> That surprises me. I tried putting the calculation of age in a
> subquery but that didn't work, either. And I've never quite
> figured out how to create a temporary table for intermediate
> results. There has _got_ to be a way to do this, e
> If your dateOfBirth is a date field,
It is.
> you can do this:
>
> select
> (substring(curdate(),1,4)-substring(dateofbirth,1,4))-
> (substr(curdate(),5) as age
> from myTable;
Thanks. That's a little more accurate (thought that doesn't quite
matter in my case).
> But you can't get a
I'm working on MySQL v5.0 and I have a table with dateOfBirth and I want
a histogram of ages at a point in time. I tried something like:
select round(datediff(curdate(), dateofbirth)/365) as age, count(age)
from myTable group by age;
but MySQL Query Browser says:
Unknown column 'age' in
n> http://dev.mysql.com/downloads/
> Look for "older releases"
Thanks but I want an older _build_ of the 5.0 release, not an older
release.
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I filed bug #20941 (mysqld seg faults during instance configuration on
XP pro, http://bugs.mysql.com/?id=20941) some time ago and have seen no
real movement on fixing it. I'm dead in the water. I can't get MySQL
v5.0 to work on my system. I'd like to try installing an older build
as a stop gap
No matter what I do, it fails at the step where it's supposed to install
and start the 'Windows service with an error 0. Is this a known issue?
It sure would be nice to get more information about the failure from
the wizard.
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> I am attempting to set and and schedule automated MySQL backups
> using the MySQL Administrator Tool downloaded from mysql.com. All
> of my back ups work fien when I perform them manually. However
> none of the scheduled backups ever get done. I am not sure where
> the glicth is but here i
I'm trying to restore a MySQL database in v5.0 (that minor number is in
the teens, I don't have it at hand). I get a bunch of warnings like:
Warning: Do not know how to handle this statement at line 28:
CREATE TEMPORARY TABLE `CHARACTER_SETS` (
`CHARACTER_SET_NAME` varchar(64) NOT NULL default
I'm trying to find a weird performance problem in a MySQL database. I
use MySQL v5.0 but the db was migrated forward from a v4.1(?) system.
Looking at the schema in a recent backup, I was surprised to find
different engines used for different tables:
...
CREATE TABLE `comment` (
`id` int
> Have you tried Repair table or if InnoDB
> ALTER TABLE ENGINE=InnoDB;
>
> Sometimes I've noticed after a restore or after adding lots of rows
> performance is slow. REPAIR or the ALTER TABLE fixes it.
I'll try that. Thanks.
What's curious is that I've got one backup I can restore and have fi
I'm moving a database to a new server. I'm using MySQL v5.0.16
on 'Windows. I used the MySQL Administrator to backup on the old
system and restore on the new one. Everything is fine _except_ on the
new server, some queries take 2-3 minutes with MySQL using 100% of the
CPU. I've dropped unne
> In this case, cnelson, you can only have a one to one relationship.
Why? If the Attribute table keyed on (ProductID,Attribute), surely a
1:M is possible.
> He wants to allow a one to many relationship.
Yes, I know.
> Using one field to store all the attribute ids in the product
> Been wondering this for a while now, I can explain how I do it, but
> I am sure there are better ways.
> ...
Maybe I'm really missing something here but I think that your querying
problem arises from bad data design. This is what I'd do:
Product table:
ProductID
some other stuff
> I am a novice when it come to queries such as this and was hoping
> someone could help me write a query that tells me how many records
> have the same ID and vendor number.
>
> |ID| vendor_no| date|
> |2354 | 578 | "2005-12-23"|
> |2355 | 334 |
When 5.0 came out, I saw an article or white paper or something with an
example of a stored procedure (I think, maybe a trigger) that allowed
you to transparently encrypt a column so that even if a database backup
was stolen, that column wouldn't be exposed to the thieves. I believe
that the examp
> I need to do a search query on the columns called
>
> Name of business "the name of the business"
> Town "Local town or city name"
> Postcode" this is the same as your zip code"
> Category"this is type of business ie dress shop bakers"
> XY "this is the t
I have two tables with quite a few fields and I want to create a view
into a limited join of the table. I have a query like:
select * from person
inner join student on person.id=student.id
where person.dormant != 'Y';
The select works fine but when I try to use MySQL Query Brows
> Hi! It is a common error, have a look here:
> http://dev.mysql.com/doc/refman/5.0/en/old-client.html
>
> I have had the same error.
Tbanks. I found that -- eventually -- in the manual. It took several
searches to find it but it seems to work now, not only for my Tcl
application but for MySQL
I'm trying to upgrade MySQL from v4.x to v5.0 under an existing
Tcl-based application that uses MySQLTcl and I'm getting:
mysqlconnect/db server: Client does not support authentication
protocol requested by server; consider upgrading MySQL client
Is there something I can do to MySQL v5 server
I've just installed MySQL v5.0.15 on my 'Windows XP system and most ways
I want to connect to it fail. I don't see what I'm doing wrong. I've
searched the manual, the web, and the forums without seeing anything
that clearly addressed my problem. Help, please!
If I navigate through Programs / MySQL
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