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What is Cognos DQM?

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What is Cognos DQM?

Table of Contents

  • What is Cognos DQM?
  • What are the three general categories of reporting Cognos?
  • What are some advantages of using dynamic query mode DQM )?

Dynamic Query Mode is the query mode introduced in Cognos 10.1. It is a 64-bit java query engine that runs as one or many java.exe process on the Cognos application server and is managed by the query service. The terms ‘DQM’, ‘query service’ and ‘XQE’ all essentially refer to this java process.

How do I change CQM to DQM in Cognos?

Migrating from CQM to DQM

  1. Publish the package(s) as DQM and test all reports, this works well if the count of reports is low keeping the testing manageable.
  2. Publish the package(s) as DQM in a new location and repoint the reports as you test them, this works well if you want to segregate the testing by groups.

What is the difference between DQM and CQM in Cognos?

Hi, DQM is a query engine embedded within your Cognos instance. Unlike CQM, it runs within the Cognos JVM and is 64-bit. It uses JDBC to connect to relational sources, and provides much better query planning and caching than CQM.

What are the three general categories of reporting Cognos?

List, Crosstab, and Chart Reports.

What are some advantages of using dynamic query mode DQM?

The dynamic query mode offers query and data source optimizations to address query complexity, large data volumes, and timeliness expectations with improved query execution techniques. For relational data sources, the dynamic query mode offers: JDBC connectivity, 64-bit connectivity, and in-memory caching.

What is Dynamic Cube in Cognos?

IBM® Cognos® Dynamic Cubes adds an in-memory relational OLAP component to the dynamic query mode server to provide a multidimensional view of a relational data warehouse with accelerated performance. You can then perform OLAP analysis using the Cognos Dynamic Cubes server.

What are some advantages of using dynamic query mode DQM )?

How do I enable dynamic query mode in Framework Manager?

Open Framework Manager, and select Create a new project. In the New Project dialog box, specify a name and location for the project, and select the Use Dynamic Query Mode check box. Choose the design language for the project, and click OK.

What are dynamic cubes?

Dynamic Cubes are an in-memory cube technology that will build multidimensional OLAP structures on a star schema or snowflake in the RAM memory of the server. It is marketed by IBM as a Big Data solution as it can handle very large volumes (TB) of data.

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