In Slowly Changing Dimensions (SCD), what is the role of effective start and end dates?
- They are optional in SCD
- They are used for sorting records
- They define the period during which a record is valid
- They indicate the creation and modification dates
Effective start and end dates in SCD define the period during which a record is valid. These dates help in tracking changes over time, enabling historical analysis and ensuring accurate representation of data at any given point.
Loading...
Related Quiz
- In a column-family store, how is data typically accessed?
- How are relationships represented in an Entity-Relationship Diagram (ERD)?
- The _______ model is designed to prevent unauthorized users from accessing or modifying data in a database.
- What is a common challenge faced when using Key-Value Stores for complex data structures?
- Effective collaboration in data modeling requires clear _______ among team members.