The primary focus of Dimensional Modeling is optimizing performance for retrieval and analysis. Unlike normalization, which aims for data integrity through minimizing redundancy, Dimensional Modeling prioritizes efficient querying and reporting for analytical purposes. This involves designing structures that align with how users typically access and analyze data in a data warehouse.

The data compression ratio is typically not considered when deciding how to partition data. Partitioning decisions are primarily based on factors such as data distribution, query performance, and security requirements, but compression considerations are addressed separately.

In Forward Engineering, the process begins with a Logical Data Model. This model represents the abstract structure of the data without concerning itself with the physical implementation. It serves as a bridge between the high-level conceptual model and the detailed physical model.

For this scenario, a One-to-One relationship is appropriate. Each appointment is associated with one patient and one doctor. It ensures that each appointment is uniquely linked to a specific patient and doctor, avoiding data redundancy.

In Dimensional Modeling, a Star Schema organizes data into a central fact table surrounded by dimension tables. The fact table contains quantitative data, and dimension tables provide context to the data. This schema design simplifies queries, improves performance, and is commonly used in data warehousing for analytical purposes.

In SQL, the HAVING clause is used to apply conditions to groups created by the GROUP BY clause. This allows you to filter the results of aggregate functions based on specified criteria, providing more flexibility in analyzing grouped data. It is commonly used in conjunction with GROUP BY to filter aggregated results.

Data partitioning can lead to increased latency as data access may involve multiple partitions. Coordinating the retrieval of data from different partitions introduces additional time, and careful consideration is needed to mitigate latency in distributed environments.

The Line is used to represent the relationship between a subclass and its superclass in an ERD. It signifies the connection and inheritance of attributes from the superclass to the subclass.

In designing the conceptual schema for a multinational corporation, considerations should include normalization, modularization, role-based access control, and data partitioning to accommodate diverse business needs and ensure future scalability.

For this scenario, creating a clustered index on the date column and a non-clustered index on the account holder column would enhance query performance. Clustered indexes dictate the physical order of data, and non-clustered indexes provide quick access to specific columns.