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News and knowledge in the field of database security and efficiency

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ORA-00904: Invalid Identifier in Oracle Databases

3/2/2025

ORA-00904: Invalid Identifier in Oracle Databases

Tomasz Chwasewicz

Database Optimization

30/1/2025

Achieve Database Optimization Without Abandoning Normalization

Tomasz Chwasewicz

Database Performance Tuning

23/1/2025

Database Performance Tuning – the Sensible Way: Collaborative Strategies, Clear Metrics, and Tested Changes

Tomasz Chwasewicz

Performance Monitor 2024.4

9/1/2025

Performance Monitor 2024.4: What’s New

Tomasz Chwasewicz

Slash Your Cloud Database Bills: Proven Cost Optimization Tactics

21/11/2024

Slash Your Cloud Database Bills: Proven Cost Optimization Tactics

Tomasz Chwasewicz

19/11/2024

Databases in 2025: New Architectures, Smarter AI, and Stronger Security

Tomasz Chwasewicz

DBPLUS PERFORMANCE MONITOR Release 2024.3

14/11/2024

DBPLUS Performance Monitor 2024.3: What's new?

Tomasz Chwasewicz

Types of Indexes and When to Use Them

26/9/2024

From Cluster to Specialized: Types of SQL Indexes and When to Use Them

Tomasz Chwasewicz

Performance Monitor Changes in Version 2024.2—Part III: OS Stat Page

19/9/2024

DBPLUS PERFORMANCE MONITOR: Changes in 2024.2 - Part 3: OS STAT

Tomasz Chwasewicz

Performance Monitor Changes in Version 2024.2—Part I: Grouping

5/9/2024

DBPLUS PERFORMANCE MONITOR: Changes in 2024.2 — Part 2: Grouping

Tomasz Chwasewicz

The Toughest Performance Challenges of SQL Server

28/8/2024

Hardest challenges performance challenges in SQL Server

Tomasz Chwasewicz

That's How Effective Query Monitoring Can Prevent Locks

1/8/2024

This is how effective SQL query monitoring can prevent blockages

Tomasz Chwasewicz

Execution plan changes in SQL server

12/7/2024

Change of execution plan in SQL Server: Causes and solutions

Tomasz Chwasewicz

Domino effect in T10 database on g1rush Server

27/6/2024

Domino effect in T10 database on g1rush Server

Tomasz Chwasewicz

If no one sees problems with the database, then do they really exist? - Unlike the popular philosophical dilemma, this question can be answered quite easily - Absolutely yes. Unseen or unmonitored problems in database systems do happen and can actually cause significant disruption. It does not matter if they are not immediately visible. Database performance parameters are basic indicators of its health. Without monitoring and proactive management, these underlying issues can escalate, leading to performance drops, potential data loss, and even system failure. These by nature require urgent and often comprehensive interventions to remedy them. Database performance parameters cannot be ignored. It just doesn't pay off.

6/6/2024

The Most Important Database Performance Metrics

Tomasz Chwasewicz

Blocking due to application problems

23/5/2024

Blocking due to application problems: Case Study

Michael Roedeske

How to speed up the reading of queries from the database?

6/5/2024

How can you speed up database read queries

Tomasz Chwasewicz

Data Observability

25/4/2024

Data Observability — Why do we keep hearing about it?

Tomasz Chwasewicz

Database Activity Monitoring

18/4/2024

How busy was the database today? - Proper monitoring of database activity

Tomasz Chwasewicz

sposób na optymalizację bazy danych Oracle

11/4/2024

Easy or Difficult Way to Optimize Oracle Database?

Tomasz Chwasewicz

4/4/2024

Performance Monitor (Release 2024.1)

Artur Boguszewski

The Nightmare of Database Deadlocks

14/3/2024

The Nightmare of Database Deadlocks

Tomasz Chwasewicz

Kluczowe czynniki w operacjach DevOps

14/2/2024

Key factors in DevOps operations

Tomasz Chwasewicz

7/2/2024

In pursuit of performance: Unexpected CPU load - Case Study

Tomasz Chwasewicz

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