DP-900 Microsoft Azure Data Fundamentals
Descriptive analytics
Prescriptive analytics
Predictive analytics
Diagnostic analytics
Cognitive analytics
Descriptive, to answer the question: What’s happening?
Diagnostic, to answer the question: Why’s happening?
Predictive, to answer the question: What will happen?
Prescriptive, to answer the question: What actions should we take?
key influencer 關鍵影響因素
scatter plot 散佈圖
key influencer 關鍵影響因素
A chart that displays the major contributors of a selected result or value.
A key influencer chart displays the major contributors to a selected result or value.
scatter plot 散佈圖
A chart that shows the relationship between two numerical values.
Scatter and Bubble charts display relationships between 2 (scatter) or 3 (bubble) quantitative measures -- whether or not, in which order, etc.
scatter plot 散佈圖
Treemap 矩形式樹狀結構圖 :
A treemap is a chart of colored rectangles. The size of the rectangles represent the relative value of each item. The chart can be hierarchical, displaying data as a set of rectangles nested within the main rectangle.
A treemap chart divides the chart area into rectangles that represent the different levels and relative sizes of the data hierarchy.
ETL
ELT
1.batch data processing
High latency
Data is processed periodically
2.real-time data processing(streaming processing)
Low latency
Data is processed periodically as it is created
使用情境
Azure Storage
Azure Blob storage
Azure File storage
Azure Table Storage
Azure Cosmos DB Gremlin API
Azure SQL Database
Azure Synapse Analysis
Azure Data Factory
JSON format (what is root object/nested object/nested array)
SQL DML/DDL/DCL
Reference:
Describe, diagnose, and predict with IoT Analytics
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