ASP Database Related Get Your Data Faster with a Data Cache Tutorial

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Tutorial: ASP Database Related Get Your Data Faster with a Data Cache Tutorial

Storing frequently used lookup data in a database is a great idea (e.g. order status codes, state names, etc.) that saves tremendous amounts of time in design and maintenance. However, retrieving that data from the database every time it is needed is very

Tutorial Details:

Get Your Data Faster with a Data Cache

Storing frequently used lookup data in a database is a great idea (e.g. order status codes, state names, etc.) that saves tremendous amounts of time in design and maintenance. However, retrieving that data from the database every time it is needed is very inefficient. This article describes how to use Application variables to cache frequently used lookup data in memory to achieve lightning fast access times. In my tests, I've seen as much as a 5000% increase in performance.

This is a topic I've seen covered by others in the past but never in enough detail to satisfy me. This technique is extremely powerful and can yield huge performance gains over non-cached queries and therefore deserves more attention.

Here's the scenario. You have data stored in your database that is accessed frequently but is rarely changed. By "rarely", I mean relative to how often it is accessed. For the sake of simplicity and the examples to follow, let's say the data consists of shipping methods for an e-commerce system.

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