Networking

Cache vs Session- Outsource.com

Differences Session data is stored at the user level but caching data is stored at the application level and shared by all the users. Sessions may not improve performance whereas Cache will improve site performance. Cache won’t maintain any state, whereas Sessions will maintain separate states for every user. Catching Read more…

Node.js

Data Validation in Database- Outsource.com

Data validation is intended to provide certain well-defined guarantees for fitness, accuracy, and consistency for any of the various kinds of user input into an application or automated system. Data validation rules can be defined and designed using any of various methodologies, and be deployed in any of various contexts. Read more…

Ruby

How does database indexing work in Rails?

Index A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes and storage space to maintain the index data structure. Some databases extend the power of indexing by letting developers create indexes on functions or Read more…