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Databases & messaging · #sequelize
Offset pagination is easy but degrades on large append-only tables. Keyset pagination keeps deep pages fast and stable under concurrent inserts. This guide compares both approaches in Sequelize, shows implementation patterns, and lists validation steps.
Learn how to use Sequelize transactions to keep related model creates atomic, avoiding orphaned data when a write fails mid‑process.
Learn how Sequelize transactions prevent orphaned rows by ensuring related model writes commit or roll back together, with a concrete user‑registration example and a reusable helper pattern.
A diagnostic guide for Sequelize connection pool exhaustion: recognize the symptoms, trace root causes through ordered checks, apply targeted fixes, and know when to escalate to database-level pooling.
Paranoid soft deletes hide rows in Sequelize but leave them in the database, causing unique constraints like email to block re-registration. Learn how to verify filtering, restore, and design indexes around soft deletes.
Stop killing your database performance with N+1 queries. Learn how to use Sequelize's 'include' property to implement Eager Loading and optimize your data retrieval.
Sequelize's include option fixes N+1 queries, but required, where, and separate each change the generated SQL in ways that cause subtle bugs. Here's how to use them correctly — and when lazy loading wins.
Sequelize’s managed transaction pattern guarantees all-or-nothing writes. Pass the transaction object to every query, avoid CLS unless verified, and monitor pool/lock metrics. A clear, auditable design keeps web services consistent and resilient.
Sequelize’s nested transactions let you roll back only part of a larger operation. This guide shows how to create them with savepoints, gives a concrete example, and explains the trade‑offs and dialect limitations.
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