Technical Articles

The Technical Articles section provides a wide variety of detailed technical content covering a wide area of material which has been written by our technical team members.


Easy IWA: Part 4 Running a selection of TPCH Queries accelerated by IBM Informix Warehouse Accelerator 12.10.FC4


This fourth and final article in the Easy IWA series provides a demonstration of accelerating a selection of TPCH queries, based on the TPCH warehouse queries, by IBM Informix Warehouse Accelerator. Building on previous articles, this provides the ability to accelerate a set of SQL  queries within a directory against IWA with sub-second timing, demonstrating the speed of query acceleration that can be attained. Provided with this article are the SQL queries and a driver script where a database (or multiple databases) is specified and the SQL queries are run against the specified database with the request to accelerate by IWA

Easy IWA: Part 3 Creating and Loading Data Marts under IBM Informix 12.10.FC4 and IBM Informix Warehouse Accelerator


This third article in the Easy IWA series provides specific worked examples of creating two Data Marts under IBM Informix Dynamic Server and IBM Informix Warehouse Accelerator 12.10.FC4. Both examples use the “smart mart” utility, with the first example loading from external tables into IBM Informix tables and subsequently into an IWA Data Mart; the second loads directly into an IWA Data Mart from external tables. Both examples use the TPCH data generation utility and schema as detailed in a previous article, with the addition of the removal of unsuitable “*_comment” columns via a simple in-line pipe and sed or awk approach.

Easy IWA: Part 2 Creating an IBM Informix Warehouse Accelerator under 12.10.FC4


This second article in the Easy IWA series details how to create an Accelerator under IBM Informix 12.10.FC4 Workgroup and Advanced editions. Worked examples to establish initial memory requirements are provided, which is key to effective and efficient resource usage and ensuring that initial provisions are reasonable. The Accelerator provides the interface between IBM Informix and the Warehouse Accelerator, performing mart administration and query processing.

Easy IWA: An Introduction to the Easy IWA Technical Articles Series


This article provides an overview of the Easy IWA Technical Articles Series. Using the TPCH database schema, Data Generation utilities and sample queries from, this series covers everything to get up and running with IBM Informix Warehouse Accelerator including data generation, creation of an accelerator, loading a Data Mart and running a set of queries.