<ul><li>When writing ETL code, focusing on maintainability is as important as business logic and performance.</li><li>Lack of maintainable code leads to escalated issues, delays in resolution, and increased business impact.</li><li>Not sharing knowledge and documenting work creates knowledge silos, risking system halt in case of key people's unavailability.</li><li>Tips for writing maintainable ETL code include designing for readability, documenting important logic, providing runbooks for support teams, and simplifying complex logic whenever possible.</li></ul>

Writing Maintainable ETL Code: Empowering Support and Avoiding Knowledge Silo

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