JOIN Query Definition: When developing a report that includes a JOIN query, two essential elements must be defined.

Reference to Two Queries: The JOIN operation requires two queries that need to be joined. These references define the source datasets for the join operation.

Relationship Defining Cardinality: The cardinality of the relationship between the two queries must be defined. This specifies the nature of the relationship, such as one-to-one, one-to-many, or many-to-many.

Implementation: In IBM Cognos Analytics, when setting up a JOIN query, users need to specify these elements to ensure the query is properly executed and returns the correct results.

Reference: IBM Cognos Analytics V11.1.x documentation provides guidelines on creating JOIN queries, em