Sounds like you should create a MERGE table that links all the
underlying tables together. Then you just query the merge table and
MySQL handles which tables it needs to pull data from. You also then
don't need to query for the tables.
On Jan 9, 2008, at 9:12 AM, Cx Cx wrote:
Hi List,
I am wondering if someone can help me with a query to check what
databases
are on the MySQL server and then check which of those databases are
either
partially or completely within the date range i require.
The scenario is as follows:
db1 : 2007-01-01 to 2007-02-01
db2 : 2007-02-01 to 2007-03-01
db3 : 2007-03-01 to 2007-04-01
db4 : 2007-04-01 to 2007-05-01
db5 : 2007-05-01 to 2007-06-01
db6 : 2007-06-01 to 2007-07-01
I require a select statement to query all the db's to identify
records with
the date range for eg. 2007-02-15 to 2007-05-12.
Logically this tells me that the databases that will have this
information
will be db2,db3,db4 and db5.
My problem is that i have multiple servers running at different
locations
that uses the same app that writes to the MySQL db. However the
amount of
databases on each server differs in amount of db's and date ranges
for each
server.
Is there a way of getting such a result with MySQL?
Thanks in advance,
Craig
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