Why is the logical execution order of SQL different from the written order?

Written order is optimized for human readability, whereas execution order is optimized for data pipeline flow.

Early SQL databases processed files backward.

It is a design flaw in modern SQL parsers.

It depends on the indexes created.

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QUESTION 01 OF 02

Order of Writing vs Order of Execution

Quiz for lesson: Order of Writing vs Order of Execution

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Which clause is written first in a SQL statement but executed much later by the database engine?

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Quiz for lesson: Order of Writing vs Order of Execution