Author: Tomas Helgi Johannsson

Tomas has over 20 years of experience as an Application Architect/Developer, Database Administrator, and Project Manager in a wide variety of business applications with a primary focus on performance. His main interest lies in client/server programming and distributed relational database design using DB2, Oracle, or MySQL/MariaDB.

Successful MySQL/MariaDB Backup and Recovery Strategies

Database administation

A vital part of preventing any kind of data loss in any situation is having appropriate backup and...
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Virtual Columns and Functional Indexes

Database development, Indexes, Tables

Much too often, we see poorly written complex SQL queries running against the database tables. Such queries may take a very short or a very...
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How CTE Can Aid In Writing Complex, Powerful Queries: A Performance Perspective

Database development, Perfomance Tuning, Tables, Work with data

We often see poorly written complex SQL queries running against a table or tables in databases. Those queries make the time of execution...
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