Thanks guys for all the replies I appreciate it. I'm leaning more and more towards using sqlite after your comments for these reasons.
1. Each user will have his/her own database and so will likely only be accessed at any one time by one user. To reduce concurrency issues as well as for better application design. It is unlikely that there will be cross user access. 2. Aside from the initial shema design, most operations from users will be read and update operations, I don't forsee too many create table statements very often. 3. There is in my opinion a similar overhead with doing operations on in-memory xml data I considered using a good ol client server setup like mysql or postgre/sql and didn't think it better to have instead a database with thousands of tables, each created per user with some of the users having more than one table by the way. I'm always open for more suggestions. On 10/13/06, John Stanton <[EMAIL PROTECTED]> wrote:
Jason Abayomi wrote: > Sorry about the previous mail, I hit tab in a gmail and it automatically > sent it. > > Anyway, back to my question > I'm planning out a program right now - web based - that would require each > user of the application to be able to create their own independent data > store with its own schema and modifications etc. In a perfect world, > sqlite > would be great for this as I could just give each individual user their own > sqlite database and let them manipulate tables and schema as they see fit > before they start to store information into the db. > > My concern is scalability and the performance hit of having let's say 5000 > users potentially, accessing 5000 databases at the same time on the server. > Based on my readings around the web there are ways to optimize sql queries > (transactions, in memory dbs and all that) but even with that, would it be > feasible or better yet advisable? > > The main issue here is the ability of the users to create and modify their > own schemas which may leave my only other option to be xml > > Thanks. > > Jason > With Sqlite that is basically only 5,000 files. not a giant load on your server. ----------------------------------------------------------------------------- To unsubscribe, send email to [EMAIL PROTECTED] -----------------------------------------------------------------------------
