Using Recursive CTEs in Firebird SQL to Traverse Hierarchies
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.
Loading…
ReadMeFeed / Community knowledge
#firebird-sql
Real questions. Useful conversations. Find the people who know your stack.
firebirdReducing Network Chatter with Firebird Selectable Stored Procedures
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.
Managing the 'Oldest Transaction' Problem in Firebird MVCC
Learn how Firebird's three-generation MVCC system handles row versions and how a single long-running transaction can cause massive database bloat.
Implementing Server‑Side Pagination in Firebird with FIRST and SKIP
Use Firebird’s FIRST and SKIP clauses for efficient server‑side pagination, ensuring deterministic ordering and avoiding performance pitfalls.
Which role takes precedence when users have overlapping privileges?
Firebird implements a Role-Based Access Control (RBAC) system where administrators use GRANT and REVOKE statements to enforce least-privilege access. In complex environments, a single user may be assigned multiple roles that grant overlapping or conflicting permissions to the same database objects. While the system allows for multiple role assignments, the b
MON$ Monitoring Tables: Transitioning to External Alerting in Firebird 3.0+
Monitoring Runtime State via MON$ Tables Firebird 3.0 and later versions expose critical runtime metrics through the MON$ monitoring tables, such as MON$DATABASE and MON$TRANSACTIONS . These tables allow external agents to track transaction age and connection counts to prevent performance degradation caused by blocked garbage collection or sweep operations.
SuperServer Page Buffer transition from Classic server architecture
Migrating a Firebird database from a Classic server architecture to a SuperServer model changes how memory is allocated for the page cache. In Classic server, each connection operates as a separate process with its own memory space, whereas SuperServer utilizes a single process and a shared global page cache for all client connections. This transition shifts