Free Practice Questions for SAP C_HAMOD_2404 Exam

To assign a user-provided service to your database module in an XS Advanced project, you configure it in the.yamlfile. This file is used to define the bindings between the project modules and the required services, such as user-provided services for accessing external schemas.

TheDynamic Joinoption in SAP HANA calculation views enables flexibility when joining tables with multiple columns. The reasons for enabling it include:

B. To allow data analysis at different levels of granularity with the same calculation view: Dynamic joins adjust to the query’s granularity requirements, enabling analysis at various levels without redesigning the calculation view.

D. To ensure that the join execution uses only the join columns requested in the query: This ensures efficient execution by only processing the relevant columns, reducing unnecessary computations.

The rank node filters and sorts data based on ranking conditions, such as partitioning and ordering. Since the query requests all columns from the rank node, all ranked rows meeting the condition are included in the output. Based on the settings in the graphic (not provided here but assumed from the question's details), the query results in9 rows. Each row adheres to the rank criteria for the partition or grouping in the rank node.

To consume a custom data source defined using SQLScript, you write the SQLScript logic in atable function. Table functions are used to return tabular data, which can then be consumed in calculation views for further processing and analysis.

To create a star schema using a calculation view with measures based on columns from two transaction tables:

Combine the transaction tables using a join node in a CUBE calculation view:The join node merges the transaction tables into a unified fact table.

Use a star join node to join the DIMENSIONS to the resulting fact table:The star join node integrates the attributes from the DIMENSION views with the measures in the fact table, completing the star schema design.

This approach adheres to best practices for building efficient star schemas in SAP HANA.(Reference: SAP HANA Star Schema Modeling Guide)

TheKeep Flagproperty in an aggregation node ensures that columns not directly requested by a query are still included in the calculation process if they are critical for the correctness of the result. For example, these columns may serve as grouping or filter criteria in intermediate processing stages, even if not explicitly displayed in the final query output.

TheHidden Columnscheckbox in the semantics node is used for the following reasons:

C. To ensure specific columns are NOT exposed to the reporting tool: This prevents unwanted columns from appearing in the reporting layer while retaining their use internally within the calculation view.

D. To remove a column that is also used as a Label column: This hides columns used only for labeling purposes from being directly exposed in the output.

TheDEPRECATEDsetting in a calculation view serves the following purposes:

A. To warn developers that the calculation view is no longer supported: Indicates that the view is outdated and should not be relied upon.

B. To indicate that it should not be used as a data source to other calculation views: Prevents new dependencies from being created on the deprecated view.

This setting does not lock the view (C) or redirect queries (D).