Thanks everyone for the help.
I was trying to use any API (e.g. PHP, Java, etc). I just gave up
because unfortunately the time fly and the user needs this asap. I am
doing via script.
Thanks!
Andre
On 21-Nov-08, at 2:34 PM, Jerry Schwartz wrote:
"Many MySQL APIs (such as PHP) allow you to treat the result
returned from a
SHOW statement as you would a result set from a SELECT; see Chapter
22, APIs
and Libraries, or your API documentation for more information. In
addition,
you can work in SQL with results from queries on tables in the
INFORMATION_SCHEMA database, which you cannot easily do with results
from
SHOW statements. See Chapter 20, The INFORMATION_SCHEMA Database."
You should be able to "refresh" your MERGE table using a programming
language. Get a list of the databases, then construct a CREATE TABLE
or what
have you.
-----Original Message-----
From: Andre Matos [mailto:[EMAIL PROTECTED]
Sent: Friday, November 21, 2008 2:11 PM
To: [EMAIL PROTECTED]
Cc: mysql@lists.mysql.com
Subject: Re: SELECT through many databases
I was trying to avoid both since the SELECT statement is not fixed.
Time to time, users want different information.
Thanks,
Andre
On 21-Nov-08, at 12:59 PM, Peter Brawley wrote:
Andre Matos wrote:
Today I have 5, but tomorrow I can have 50 and I don't want to
forget any database.
Do it in an app language or as a PREPARED statement in an sproc.
PB
---
Andre Matos wrote:
Hello,
Let's suppose I have 5 database: db1, db2, db3, db4, and db5. They
all have the same structure but different data.
I would like perform this select
SELECT TaskDoneOn, TaskDoneBy
FROM {database}
WHERE TaskDoneOn IS NOT NULL
and collect the data from all 5 database. However, I would like to
avoid doing something like this:
SELECT TaskDoneOn, TaskDoneBy
FROM db1
WHERE TaskDoneOn IS NOT NULL
UNION
SELECT TaskDoneOn, TaskDoneBy
FROM db2
WHERE TaskDoneOn IS NOT NULL
UNION
SELECT TaskDoneOn, TaskDoneBy
FROM db3
WHERE TaskDoneOn IS NOT NULL
UNION
SELECT TaskDoneOn, TaskDoneBy
FROM db4
WHERE TaskDoneOn IS NOT NULL
UNION
SELECT TaskDoneOn, TaskDoneBy
FROM db5
WHERE TaskDoneOn IS NOT NULL
Today I have 5, but tomorrow I can have 50 and I don't want to
forget any database.
Thanks for any help.
Andre
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Database: 270.9.0/1777 - Release Date: 11/9/2008 9:53 AM
--
Dr. André Matos
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