In relational database terms, a "logical primary key" refers to a column or combination of columns in a database table that is designated as the unique identifier for each row or record in that table. The primary key serves as a reference point for establishing relationships between different tables in a relational database.
The logical primary key is a conceptual designation rather than a physical attribute. It represents the logical or conceptual uniqueness of a record and is typically implemented using a unique constraint or index in the database.
By enforcing uniqueness, the primary key ensures that each row in the table can be uniquely identified and accessed. It provides a means to uniquely identify and relate records across different tables through foreign key relationships, enabling efficient data retrieval and maintaining data integrity.
In most cases, a logical primary key consists of a single column, often an auto-incrementing numeric value. However, it can also be composed of multiple columns if the combination of those columns guarantees uniqueness across the table.
Use in SQL Server Analysis Services (SSAS)
SQL Server Analysis Services (SSAS) is a powerful tool for building and deploying analytical solutions. One of the key components of SSAS is the data source view (DSV),
What are logical primary keys and relationships?
Logical primary keys and relationships are metadata properties that you can assign to tables and columns in your SSAS DSVs. They are not the same as physical primary keys and foreign keys in your data sources, although they can be derived from them. Logical primary keys and relationships are used by SSAS to identify unique rows, enforce referential integrity, and support dimension and attribute relationships. – https://www.linkedin.com/advice/0/how-do-you-use-logical-primary-keys-relationships#:~:text=What%20are%20logical%20primary%20keys,can%20be%20derived%20from%20them.
Disambiguate
A Logical Table's Primary Key.
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