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Reprinted ETL architect interview questions 1. What is a logical data mapping and what does it mean to the ETL team? What is Logical Data ing? What role does it play on the ETL project team? A: Logical Data Map) describes the data definition of the source system, the model of the target data warehouse, and instructions on operations and processing methods to convert the data of the source system to the data
file.A single portal makes it easier to control permissions, allowing for security checks on HTTP requests.Cons: URLs look less beautiful, especially unfriendly to search engines.14. Print one with '. ' Linked strings, what else can be used instead of '. ' More efficient links?can be used, instead., more efficient.15. What does the hint type 200, 404, 502 mean?200 is the request succeeds, 404 is the file is not found, and 502 is the server internal error.16. Write a custom function to extract t
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