Doctoral Degree hopefully that helps
The <u>type 2</u> slowly changing dimension approach creates a new additional dimension record using a new value for the surrogate key every time a value in a dimension record changes. The correct answer is B.
<h3>Understanding the Slowly Changing Dimension</h3>
SCD, or slowly changing dimension, can be defined as a dimension in a data warehouse that stores and maintains the current data and the historical data over time. A slowly changing dimension in a star schema contains two different attributes values: do not change and change occasionally. Here is the difference:
- Attributes whose values do not change (or change very infrequently), including such store size and client gender.
- Attributes whose values vary intermittently and irregularly throughout time, such as customer zip code and staff salary.
The three most common approaches for coping with slowly changing dimensions are as follows:
Whenever a value in a dimension record changes, type 2 of a slowly changing dimension produces a new extra dimension record with a new value for the surrogate key. This type is also utilized when history needs to be kept, and it may be paired with the usage of timestamps and row indications.
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An ion is an atom or molecule with a electric charge due to the loss or gain of one or more electrons.
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WHO classifies Cortical age-related cataracts, bilateral, as a medical condition under the heading "Diseases of the eye and adnexa" using the CD-10 number H25. 013.
ICD-10-CM H65. 93's 2022 revision went into effect on October 1st, 2021. 93 - various international variations of ICD-10 H65. This is the American ICD-10-CM version. Cortical age-related cataract, right eye, ICD-10 code H25. 011-coded by AAPC.
According to the WHO, the ICD-10 code Z01. 00 for Encounter for examination of the eyes and eyesight without abnormal results falls under the category of "Factors influencing health status and interaction with health services." Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy and macular edema, bilateral E11. 3213 is the ICD-10-CM code for this condition.
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