I have an asp.net web application and a sql server 2008 R2 database. the application is being used by over than 300 users in the same time, they are retrieving, adding, updating and deleting records simultaneously. The application is opening and closing the connection at each function that executes a query.
I think its wrong to open and close connection for all these times and with that number of users right? but i don't know how to make this better because i'm new with asp.net so can anyone help me and provide me with some better ideas?
Thanks in advance.