This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
To establish a new connection it takes time so, instead of that we will use connection pooling. But in banking applications why they will go for single connection instead of pooling? Is there any security reasons to avoid pooling.