week 3 discussion 2
abikdunfjsrwk"Preparing an Adequate Data Model" Please respond to the following:
- Using specialization hierarchies can provide an efficient application development structure. Justify the use of surrogate primary keys for a database design. Provide an example to support your response.
- Historical data can be important to measuring performance. Prepare an example on how time-variant data can be properly captured and maintained within a database system.
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