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Dynamic finders let you query Grails domain classes with a concise method name. This article explains how they work, shows a working example, and lists limits and common pitfalls so you can use them safely and efficiently.
Partial writes corrupt ledgers when a debit succeeds but a credit fails. Knex's transaction callback form makes the boundary explicit, but only if every query is bound to the `trx` object.
Need a single‑statement upsert in Firebird? Discover how UPDATE OR INSERT works, the MATCHING clause, RETURNING support, concurrency pitfalls, and a hands‑on example to confirm behavior in your own DB.
Learn how to diagnose and fix common Ecto pagination issues caused by misuse of limit/offset, version differences, and changeset validation.
Atomic multi‑row writes in Sequelize require a transaction. This guide compares managed callbacks, unmanaged transactions, and CLS namespaces, explains trade‑offs, and shows a concrete transfer‑funds implementation with validation tests.
MariaDB stores JSON as LONGTEXT, not a binary type. This guide compares plain text, the JSON alias with validation, and generated-column indexing to help you pick a storage strategy.
A concise architecture note outlining the smallest FireDAC‑based design for RadStudio Delphi apps, covering requirements, trust boundaries, checks, failure modes, and triggers for redesign.
Learn how to scope Knex.js transactions correctly, avoid connection leaks, and verify rollback behavior with minimal code and configuration.
Learn how SQLite’s UPSERT (ON CONFLICT DO UPDATE) replaces the traditional two‑step insert‑or‑update pattern with a single atomic statement, including syntax, an example, performance notes, and limitations.
grails
nodejs
knexjs
firebird
ecto
sequelize
json
delphi