Refactoring Databases¶
Ambler, S. W., & Sadalage, P. J. (2006). Refactoring Databases: Evolutionary Database Design. Addison-Wesley.
Cited by¶
2 citations across 2 artifacts.
Each citation links to the sentence it supports in the citing article.
Mechanisms¶
- Behind-Front Stabilization Pass
- It is what turns "we changed it" into "we changed it and confirmed it" — the essence of an expand–contract (parallel-change) migration, where old state is retired only after new state is verified in place.
This sourcePrescribes a tested parallel transition in which old and new schemas coexist until the old form can be removed safely.
- It is what turns "we changed it" into "we changed it and confirmed it" — the essence of an expand–contract (parallel-change) migration, where old state is retired only after new state is verified in place.
- Versioned Schema Change
- It misleads when the contract step is skipped: old shapes then linger indefinitely, dual-write logic never comes out, and the schema silts up with permanent "temporary" compatibility.
This sourceRequires removal of the original schema and synchronization scaffolding after the transition period.
- It misleads when the contract step is skipped: old shapes then linger indefinitely, dual-write logic never comes out, and the schema silts up with permanent "temporary" compatibility.
Verification¶
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Does it back the claim? Not recorded. Neither this nor any other of the 2 citations of this work carries a recorded support check.
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