30/01/2025

High concurrency, scattered queries, unpredictable data growth—the usual suspects. When everything’s slow and your tables are bursting, you face a tough choice: enforce strict normalization for pristine data integrity or optimize aggressively to wring out every last drop of performance. Overly normalized schemas may lead to a maze of joins and hamper speed under heavy loads. Performance-driven shortcuts—like denormalizing key data—can bloat storage and complicate updates.  Balancing database optimization and normalization isn’t always straightforward, but it is possible. 

• Blog
• Performance Monitor

23/01/2025

Databases are either the invisible workhorse that keeps everything running smoothly or the ticking time bomb that wakes you at 3 a.m. with catastrophic slowdowns. There’s rarely a middle ground. Performance tuning makes all the difference—especially when you combine actual metrics, meaningful collaboration, and a dash of common sense. A few checks here and there can save hours of panic later on, and nothing beats a stable, responsive system for making you look like the hero of the IT team. 

Of course, it helps to have a reliable way to see what’s going on under the hood while performance tuning, keep everyone on the same page, and avoid applying fixes blindly. After all, a well-tuned database is happier, and so are the people who rely on it every day.

• Blog
• Microsoft SQL
• Oracle
• Performance Monitor
• PostgreSQL

16/01/2025

Oracle database has many problems and often recurring ORA-01555 is one of them. It is known as the “snapshot too old” error, and occurs when Oracle cannot provide a consistent read of the data that existed at the query’s start time. Oracle attempts to use undo data to roll back any changes made after the query began. If that undo information has been overwritten or otherwise lost, Oracle can no longer reconstruct its older version. This leads to the ORA-01555 exception.

• Blog
• Oracle

09/01/2025

Managing database performance is rarely straightforward, and the demands only keep multiplying. In response, DBPLUS Performance Monitor 2024.4 introduces new features that help you see exactly how queries behave across different platforms, track CPU usage at a glance, refine how and when alerts reach you, and unify session data.

If you prefer a monitoring tool that shows critical insights with less hassle, the latest version deserves your attention.

• Blog
• Microsoft SQL
• Oracle
• Performance Monitor
• PostgreSQL

02/01/2025

ORA-06512 is often misunderstood as the primary cause of an Oracle error, when in reality it just pinpoints where an exception occurred in your PL/SQL code. The true issue usually lies in a preceding error, such as an unhandled exception or data mismatch, hidden earlier in the stack. 

In contrary to ORA-12154 or ORA-00600—which typically point to direct connectivity or internal database failures—ORA-06512 simply acts as a line-number reference. It tells you where an error occurred, not why. But let’s start from the beginning.

• Blog
• Oracle