tank5598 tank5598

30-07-2019
Computers and Technology

contestada

Give three reasons why you think ETL functions are mostchallenging in data warehouse environment.

Respuesta :

ExieFansler ExieFansler

05-08-2019

Answer:

Because of the nature of the source systems ETL functions are challenging.Reasons are as following:-

1. There are various source systems are very and contrasting.

2. There is usually a requirement to deal with source systems on different platforms or Operating Systems.

3. Quality of data is uncertain in many old source systems that have developed gradually over time.

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