8/10/2019 Best Practices in Cognos Report Studio
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Introduction:
In this paper, we will discuss we will discuss some best
practices that you should following while
working in cognos report studio.
Best Practices-cognos report studio:
Following are the points that the developer should use while
developing reports in cognos
report studio.
1. Formatting:
ConsistencyThere should be consistency for the formatting
options (Font, Margin,Border, etc.) throughout the report. This
will improve readability.
Report Expressions
Add Report expressions above the crosstab for the selection made
in theprompts. This will help the user know the selections made in
the report; Itwould also help in the scenario, where there is no
data for the selections.
2.
Filter and Prompts:
Ensure that there should be filters for every dimension
required. Due to thisrows fetched from the database will be
less.
Use = instead of in for single value comparison in filters. Due
to this queryrun time will reduce.
Use CASE statement instead of IFELSE, for implementing
conditionalfilter. This will improve performance of the filter
execution.
Delete filters which are not required instead of disabling them.
This isrequired as unused Code hampers the performance of the
report.
3. Calculation:
Use in-built calculations instead of calculating manually.Assign
proper solve order for the calculated data items.Use explicit
brackets for expression definitions. The calculations may give
wrong answer if the Brackets are not used in the expressions or
calculationsof data items.
4. Query Items:
Remove all unnecessary objects from the report. This improves
executionbecause when the report is executed, the data is fetched
for all the dataitems in the report.
Use data items instead of Calculated members and
Calculatedmeasures. The calculations of members should be done in
data items. Ithelps to reduce the run time of calculations.
