Conditional Block: This feature allows for dynamic content within reports based on user interactions and selections.

Prompt Selections: By using a conditional block, report developers can control the visibility of report objects based on the prompt values selected by the user at runtime.

Use Case: This is useful for creating reports that adapt to user inputs, providing a more tailored and relevant data presentation.

Reference: IBM Cognos Analytics V11.1.x documentation details how to implement conditional blocks to show or hide report objects dynamically based on user inputs.

Layout Positioning for Mobile Devices: When designing dashboards for different mobile devices, the layout positioning must be flexible.

Relative Positioning: This option ensures that dashboard components are arranged in a way that adapts to different screen sizes and orientations, providing a consistent user experience across various devices.

Adaptive Layouts: Relative positioning allows the dashboard elements to resize and reposition automatically based on the device, ensuring usability and accessibility.

Reference: IBM Cognos Analytics V11.1.x documentation recommends using relative positioning for dashboards intended for mobile devices to maintain optimal presentation and functionality.

In IBM Cognos Analytics V11.1.x, to ensure that any JavaScript and Prompt APIs are executed when a report is run as HTML, you need to set the "Run with full interactivity" property to No. Here is how to do it:

Open the Report: Open the report in Cognos Analytics Report Studio.

Access Report Properties: Click on the "Report" tab to access the report properties.

Set Interactivity: Locate the "Run with full interactivity" property. By default, this property may be set to Yes.

Change to No: Set the "Run with full interactivity" property to No. This ensures that JavaScript and Prompt APIs are executed properly when the report is run in HTML format.

Setting "Run with full interactivity" to No is crucial for enabling the execution of custom scripts and prompt APIs, which might not work correctly with full interactivity enabled.

In IBM Cognos Analytics V11.1.x, before you can modify the text item in a list column title or the data in the column body of a list object, you need to unlock the report. Here are the steps:

Open the Report: Open the report in Cognos Analytics Report Studio.

Lock Page Objects: By default, page objects are locked to prevent accidental changes.

Unlock Page Objects: Click on the "Lock Page Objects" icon in the toolbar to unlock the report. This allows you to make changes to individual cells within the report.

Select and Edit: Once unlocked, select the desired cell within the list object. You can then change the text item or modify the data format as required.

Unlocking the report ensures that you can safely make modifications without impacting other report elements.

Understanding Joins: Outer joins and cross joins often result in large intermediate result sets. This can slow down query performance due to the increased data processing required.

Outer Joins: These include rows that do not have matching keys in the joined tables, which means more data to process and potentially more I/O operations.

Cross Joins: These produce Cartesian products of the involved tables. If the tables are large, the resulting dataset can be enormous, leading to significant performance degradation.

Cognos Documentation: The IBM Cognos Analytics V11.1.x documentation advises optimizing join conditions and limiting the use of complex joins such as outer and cross joins to enhance performance.

In IBM Cognos Analytics V11.1.x, the following items can be placed on the opposite edge of a Crosstab in a report:

The Value of a Member:

Dynamic Placement: The value of a member from one edge of the crosstab can be dynamically placed on the opposite edge to compare or analyze data from different perspectives.

Crosstab Intersection:

Intersection Values: Crosstab intersections, where rows and columns meet, can display specific data values, providing detailed insights into the relationships between different data dimensions.

These configurations allow for versatile and detailed data analysis within crosstabs.

Custom Sorting: In IBM Cognos Analytics dashboards, custom sorting allows developers to manually define the order of columns in visualizations.

Manual Ordering: By using custom sorting, the developer can specify the exact order in which columns should appear, overriding any automatic sorting.

Implementation: This is done by accessing the sort options for the visualization and choosing the custom sort option, where the desired order can be set.

Reference: IBM Cognos Analytics V11.1.x documentation details the process of using custom sorting to manually order columns in a visualization, ensuring that the display order meets specific requirements.