What is cardinality set in Cognos?
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What is cardinality set in Cognos?
The cardinality of a relationship defines the number of rows of one table that is related to the rows of another table based on a particular set (or join) of keys. Cardinality is used by IBM Cognos software to infer which query subjects behave as facts or dimensions.
What are the three types of variables you can create in Cognos?
There are three types of report variables: string, boolean and locale. The variable to test is specified by the refVariable attribute.
How do you use variables in Cognos?
Procedure
- Create the variables that will define the minimum and maximum values of the Cognos Workspace slider.
- Click Manage ranges.
- Click the new icon.
- In the Name box, type the name of the range variable.
- Click the Minimum Variable list and select the variable that will be used to set the minimum value of the slider.
Where do you define variables to conditionally format content in a report Cognos?
Add a variable from the properties pane Before you can add conditional formatting or conditional rendering to your report, you must add a variable. You can create a variable in the condition explorer or in the Properties pane.
What is set cardinality?
The size of a finite set (also known as its cardinality) is measured by the number of elements it contains. Remember that counting the number of elements in a set amounts to forming a 1-1 correspondence between its elements and the numbers in {1,2,…,n}.
What is cardinality of table?
Cardinality is a mathematical term. It translates into the number of elements in a set. In databases, cardinality refers to the relationships between the data in two database tables. Cardinality defines how many instances of one entity are related to instances of another entity.
How do you create a variable in Cognos Report Studio?
In the New Variable dialog box, in the Name box, type the name of the variable. If you created a string variable, click the add button , type the string values to define, and click OK. If you created a language variable, select the languages to support and click OK.
How do I use conditional formatting in Cognos Report Studio?
Steps
- Open or create a report that you want to add conditional styles to.
- Select the object you wish to use.
- From the Properties pane on the right, go to Conditional Style.
- Click the green ‘+’ icon and select New conditional style.
- Select the data item you wish to use conditional styling on.
What are the three types of cardinality?
There are three relationship types or cardinalities: one-to-one, one-to-many, and many-to-many. Entity-Relationship (ER) diagrams are used to describe the cardinality in databases.
How do I create a render variable in Cognos 11?
Steps
- Select the list column to be rendered conditionally.
- In the Properties pane, double-click the Render Variable property.
- Click Variable and click the variable that will determine if the column will be rendered.
- In the Render for box, select the values that the condition will support.
How do I use conditional formatting in Cognos report Studio?
What is conditional block in Cognos?
Conditional blocks show different display results based on user interaction or parameters read in when a Report is run. They provide a creative method for presenting either the same report data in various formats or executing several completely different reports from one prompt page.
What is conditional formatting in Cognos?
Conditional formatting allows you to highlight exceptional data in a report. You can format parts of your report based on one or more string values, a report condition, or data values. To define conditional formatting, add a namedConditionalStyles element to your report specification.
What are different types of cardinality?
When dealing with columnar value sets, there are three types of cardinality: high-cardinality, normal-cardinality, and low-cardinality. High-cardinality refers to columns with values that are very uncommon or unique. High-cardinality column values are typically identification numbers, email addresses, or user names.
