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Databases & messaging · #firebird
Use Firebird's FIRST and SKIP clauses to return bounded result-set windows, but always pair them with ORDER BY and understand the cost of large offsets.
Learn how Firebird's Recursive CTEs let you flatten employee org charts or category trees with a single SQL statement, avoiding stored procedures and complex joins.
Learn how to use Firebird's selectable stored procedures and the SUSPEND keyword to reduce network latency by moving complex business logic into the database layer.
Server‑side logic in Firebird with PSQL can replace costly client loops, cut network traffic, and keep ACID compliance. This post walks through a worked example, compares it to client‑side loops, and discusses trade‑offs.
Firebird does not support ANSI OFFSET/FETCH. It offers FIRST/SKIP and the ROWS clause, but deep pages force the engine to sort and discard rows. Learn how to page efficiently.
Global Temporary Tables in Firebird provide private, connection- or transaction-scoped storage without permanent schema pollution. Learn the minimal design, trust boundaries, and failure modes before adopting them.
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.
Firebird's MVCC cleanup is capped by the Oldest Active Transaction. Here's how idle transactions inflate the file, how to find the pinning attachment with MON$ tables, and how to verify with gstat.
Firebird’s ROWS clause replaces LIMIT/OFFSET with 1‑based inclusive pagination. Learn semantics, a worked example, deep‑offset costs, and the keyset alternative for large tables.