Question: Why is an effective ETL process essential to data warehousing? Horizontal scaling of a relational database enables multiple servers to operate on the data. Dirty

Why is an effective ETL process essential to data warehousing?
Horizontal scaling of a relational database enables multiple servers to operate on the data.
"Dirty data" can result in incorrect or misleading statistics used for decision making.
Small- to medium-sized businesses need a stable data warehousing option.
The ETL process removes the necessity for a predefined database schema.
Why is an effective ETL process essential to data warehousing? Horizontal

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