creating tables on the fly? Should I or Shouldn't I?

2002-07-31 Thread Brook Davies

I posted this before, but got no response. Does any one know if this is 
sound/standard practice and if it makes any sense in this context? Just a 
nudge in the right direction in all I need. Thanks!

-

I am designing an email application that will be used by multiple (100's -
1000's) of users. Each user will have their own account. When they send
mail, the recipients are recorded to a table. this table is basically just
a reference to the full recipient record and the email campaign id. If each
user is sending email campaigns of 25,000 recipients + what is the best way
to record and later generate reports on this data.

Would it make sense to generate a campaign recipient table on the fly for
each user of the system upon registration or first use? This way the total
records per table would be a bit more manageable for report generation
later. Is this sound practice? Or should I just have one huge table shared
by all the systems users. I could see this table growing to 20,000,000
records within time. Would select statements and report generation on
subsets of data from this monster table be slow? (SQL7) Are there benefits
to leaving all of the data in one big table as opposed to generating this
table on the fly for each user, therefor keeping the total size down? The
table which holds the email campaigns recipients will need to be used in a
number of joins to include additional email delivery stats.

What do you think?

Brook Davies
maracasmedia inc.


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Re: creating tables on the fly? Should I or Shouldn't I?

2002-07-31 Thread S . Isaac Dealey

Generating tables for users on the fly is liable to be a lot more work both
in the short term and especially in the long run. My general feeling is that
if you think having separate tables to limit the number of records per would
be a significant advantage ( if not necessary for performance purposes,
after having exhausted the use of indexes and locking hints ) that you
should probably be replicating and load-balancing your database accross
multiple servers.

I don't have any personal experience with systems which create tables on the
fly, however, so I can't say from experience that it was a disaster ... it
is a semi-unknown -- I know how it can be accomplished with SQL Server using
the sp_execsql stored procedure primarily ( that is internally, as opposed
to using ColdFusion dynamic queries ) but I haven't actually done it. The
fact that there are very few people who have worked with similar systems is
another reason for hesitation, since it limits your ability to get help if
something goes wrong.

Isaac Dealey
Certified Advanced ColdFusion Developer

www.turnkey.to
954-776-0046

 I posted this before, but got no response. Does any one
 know if this is
 sound/standard practice and if it makes any sense in this
 context? Just a
 nudge in the right direction in all I need. Thanks!

 --
 ---

 I am designing an email application that will be used by
 multiple (100's -
 1000's) of users. Each user will have their own account.
 When they send
 mail, the recipients are recorded to a table. this table
 is basically just
 a reference to the full recipient record and the email
 campaign id. If each
 user is sending email campaigns of 25,000 recipients +
 what is the best way
 to record and later generate reports on this data.

 Would it make sense to generate a campaign recipient table
 on the fly for
 each user of the system upon registration or first use?
 This way the total
 records per table would be a bit more manageable for
 report generation
 later. Is this sound practice? Or should I just have one
 huge table shared
 by all the systems users. I could see this table growing
 to 20,000,000
 records within time. Would select statements and report
 generation on
 subsets of data from this monster table be slow? (SQL7)
 Are there benefits
 to leaving all of the data in one big table as opposed to
 generating this
 table on the fly for each user, therefor keeping the total
 size down? The
 table which holds the email campaigns recipients will need
 to be used in a
 number of joins to include additional email delivery
 stats.

 What do you think?

 Brook Davies
 maracasmedia inc.


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Re: creating tables on the fly? Should I or Shouldn't I?

2002-07-31 Thread Jon Hall

I think the question that needs to be answered is do the account
holders really want to know exactly when a particular email address
was mailed, and what they were mailed, and if so do they really need
to do the queries on the fly?

Those are the only benfits I can see of keeping track of exactly which
emailing a particular email address received. I do see how valuable
that kind of info could be in trying to track response though.
Maybe if you only stored the complete record of who got emailed what
for a certain amount of time? That might make the hardware
requirements managable.
How about logging the mailing info to a log file, and developing a
process to parse the files and generate fancy reports? They couldn't
be done on the fly, but there might be an oppurtunity to charge for
the reports that way :)

As to the question of creating tables on the fly, I don't think it's a
good idea...data must be normalized, resistance is futile :) That's my
opinion anyway.

--
 Jon
 mailto:[EMAIL PROTECTED]

Wednesday, July 31, 2002, 8:20:48 PM, you wrote:
BD I posted this before, but got no response. Does any one know if this is 
BD sound/standard practice and if it makes any sense in this context? Just a 
BD nudge in the right direction in all I need. Thanks!

BD -

BD I am designing an email application that will be used by multiple (100's -
BD 1000's) of users. Each user will have their own account. When they send
BD mail, the recipients are recorded to a table. this table is basically just
BD a reference to the full recipient record and the email campaign id. If each
BD user is sending email campaigns of 25,000 recipients + what is the best way
BD to record and later generate reports on this data.

BD Would it make sense to generate a campaign recipient table on the fly for
BD each user of the system upon registration or first use? This way the total
BD records per table would be a bit more manageable for report generation
BD later. Is this sound practice? Or should I just have one huge table shared
BD by all the systems users. I could see this table growing to 20,000,000
BD records within time. Would select statements and report generation on
BD subsets of data from this monster table be slow? (SQL7) Are there benefits
BD to leaving all of the data in one big table as opposed to generating this
BD table on the fly for each user, therefor keeping the total size down? The
BD table which holds the email campaigns recipients will need to be used in a
BD number of joins to include additional email delivery stats.

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RE: creating tables on the fly? Should I or Shouldn't I?

2002-07-31 Thread Paris Lundis

I would say providing such granularity gets expensive...

Not that should or shouldn't do it...

from my take you have a database that looks like:

ID (autonumber)
email_address (text)
email_campaign (numerical)
subscriber_identifier (numerical) - relates to the particular user
generating the email


If you have 25,000 as a hard max on per mail mailings, then worst case is
25,000 x users x duration of logging... Every 40 power users per day adds a
million rows of data... 400 power users equals 10 million rows

Growth is exponential. Manageability of the data is paramount to making the
system work in my opinion   So historical data should be 'warehoused'
after so many days and made available in less than live time web response
atmosphere...

Multiple tables won't work in this scenario... due to volume and limits on
indexes, overhead, etc I am sure someone will say otherwise... it's just
an expensive road to travel...

The one table approach is wonderful, because you can bulk remove old data
from it in one big query... the other route would mean multiple efforts to
trim each set of data... more operations, more likelihood for error...

I run queries against a several million column access database with
success... SQL varieties (MSSQL and MySQL) should fair well for multiple
user environments.

You should attempt to precompile things on schedule to another table with
stats, long and large term stuff... The only thing people should live time
be requesting is active campaign data...

Noted, that this is a logging application... This is the type of stuff that
normally breaks things...

-paris
Paris Lundis
Founder
Areaindex, L.L.C.
http://www.areaindex.com
http://www.pubcrawler.com
(p) 1-212-655-4477
[finding the future in the past, passing the future in the present]
[connecting people, places and things]

-Original Message-
From: Brook Davies [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 31, 2002 8:21 PM
To: CF-Talk
Subject: creating tables on the fly? Should I or Shouldn't I?


I posted this before, but got no response. Does any one know if this is
sound/standard practice and if it makes any sense in this context? Just a
nudge in the right direction in all I need. Thanks!

-

I am designing an email application that will be used by multiple (100's -
1000's) of users. Each user will have their own account. When they send
mail, the recipients are recorded to a table. this table is basically just
a reference to the full recipient record and the email campaign id. If each
user is sending email campaigns of 25,000 recipients + what is the best way
to record and later generate reports on this data.

Would it make sense to generate a campaign recipient table on the fly for
each user of the system upon registration or first use? This way the total
records per table would be a bit more manageable for report generation
later. Is this sound practice? Or should I just have one huge table shared
by all the systems users. I could see this table growing to 20,000,000
records within time. Would select statements and report generation on
subsets of data from this monster table be slow? (SQL7) Are there benefits
to leaving all of the data in one big table as opposed to generating this
table on the fly for each user, therefor keeping the total size down? The
table which holds the email campaigns recipients will need to be used in a
number of joins to include additional email delivery stats.

What do you think?

Brook Davies
maracasmedia inc.



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RE: creating tables on the fly? Should I or Shouldn't I?

2002-07-31 Thread Joe Eugene

Personally... I would create a good relational tables structure without any
data
replication... this should be fairly sufficient.

Joe
Certified Advanced ColdFusion Developer
[EMAIL PROTECTED]

-Original Message-
From: Brook Davies [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 31, 2002 8:21 PM
To: CF-Talk
Subject: creating tables on the fly? Should I or Shouldn't I?


I posted this before, but got no response. Does any one know if this is
sound/standard practice and if it makes any sense in this context? Just a
nudge in the right direction in all I need. Thanks!

-

I am designing an email application that will be used by multiple (100's -
1000's) of users. Each user will have their own account. When they send
mail, the recipients are recorded to a table. this table is basically just
a reference to the full recipient record and the email campaign id. If each
user is sending email campaigns of 25,000 recipients + what is the best way
to record and later generate reports on this data.

Would it make sense to generate a campaign recipient table on the fly for
each user of the system upon registration or first use? This way the total
records per table would be a bit more manageable for report generation
later. Is this sound practice? Or should I just have one huge table shared
by all the systems users. I could see this table growing to 20,000,000
records within time. Would select statements and report generation on
subsets of data from this monster table be slow? (SQL7) Are there benefits
to leaving all of the data in one big table as opposed to generating this
table on the fly for each user, therefor keeping the total size down? The
table which holds the email campaigns recipients will need to be used in a
number of joins to include additional email delivery stats.

What do you think?

Brook Davies
maracasmedia inc.



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Creating tables on the fly or using one big table

2002-07-26 Thread brook

I am designing an email application that will be used by multiple (100's - 
1000's) of users. Each user will have their own account. When they send 
mail, the recipients are recorded to a table. this table is basically just 
a reference to the full recipient record and the email campaign id. If each 
user is sending email campaigns of 25,000 recipients + what is the best way 
to record and later generate reports on this data.

Would it make sense to generate a campaign recipient table on the fly for 
each user of the system upon registration or first use? This way the total 
records per table would be a bit more manageable for report generation 
later. Is this sound practice? Or should I just have one huge table shared 
by all the systems users. I could see this table growing to 20,000,000 
records within time. Would select statements and report generation on 
subsets of data from this monster table be slow?  (SQL7) Are there benefits 
to leaving all of the data in one big table as opposed to generating this 
table on the fly for each user, therefor keeping the total size down? The 
table which holds the email campaigns recipients will need to be used in a 
number of joins to include additional email delivery stats.

What do you think?

Brook

At 09:56 PM 7/26/02 -0700, you wrote:
How bout

cfif  variables.choiceValue
  !--- process stuff- --
/cfif

At 11:34 PM 7/26/02 -0500, you wrote:
 I have an if statement that I need to write, it is I am sure very simple,
 but for some reason i cannot think straight on it.
 
 Basically if this variable is a 0 or a  then I don't want to process
 some stuff ... how would I write this?
 
 This code below doesn't work .. it still lets  or 0's through...
 cfif (variables.choiceValue neq 0) OR (Len(variables.choiceValue)
 
 /cfif
 
 What am I not thinking of?!
 
 Paul Giesenhagen
 QuillDesign
 
 
 

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Repost: Tables on the fly

2001-04-21 Thread William Wheatley

what was the code you put in a table to get it to display on the fly before the 
/table

I have a search pages thats geeting so big that it needs to be able to be displayed on 
the fly




Bill Wheatley
Director of Development
Allaire Certified ColdFusion Developer
AEPS INC
Allaire ColdFusion Consulting Partner
www.aeps.com
www.aeps2000.com
954-472-6684 X303
ICQ: 417645





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Tables on the fly

2001-04-20 Thread William J Wheatley

Ok i remember this being talked about a few months back but i cant find it
in the archives.

Whats the command you put in the Table structures for HTML ot make a TABLE
display on the fly?
You have to give it the command so it does not have to calculate on its own?

Thanks!


Bill Wheatley
Director of Development
AEPS INC
Allaire ColdFusion Consulting Partner
Allaire Certified ColdFusion Developer
http://www.aeps.com
ICQ: 417645
954-472-6684 X303

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