Feodor Georgiev

Feodor has a background of many years working with SQL Server and is now mainly focusing on data analytics, data science and R.

Over more than 15 years Feodor has worked on assignments involving database architecture, Microsoft SQL Server data platform, data model design, database design, integration solutions, business intelligence, reporting, as well as performance optimization and systems scalability.

In the past 3 years he has expanded his focus to coding in R for assignments relating to data analytics and data science.

On the side of his day to day schedule he blogs, shares tips on forums and writes articles.

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28 November 2012
28 November 2012

How come the Hourglass? Why database applications slow down

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It is frustrating when you hit 'submit' and you get the hourglass big-time. Is it the database to blame? It could be, but there are other suspects that should be considered. Feodor describes where, in the long route, to and fro', that a data request makes before returning, that things can get snarled up.… Read more
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20 November 2012
20 November 2012

Handling Backups for Rapid Resilience

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The backup and restore system in SQL Server hasn't changed a great deal over the years despite a huge growth in the typical size of databases. When disaster strikes, and an important service is taken offline while a restore is performed, there is often time to reflect on whether it might be possible to design databases for a more rapid recovery of the most critical parts of a database application.… Read more
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10 November 2012
10 November 2012

How come the Hourglass? Why database applications slow down

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15
It is frustrating when you hit 'submit' and you get the hourglass big-time. Is it the database to blame? It could be, but there are other suspects that should be considered. Feodor describes where, in the long route, to and fro', that a data request makes before returning, that things can get snarled up. … Read more
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15 October 2012
15 October 2012

Designing Databases for Rapid Resilience

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As the volume of data increases, DBAs need to plan more actively for rapid restores in the event of failure. For this, the intelligent use of filegroups is important, particularly when the Enterprise Edition of SQL Server offers the hope of online restores. How, though, should you arrange your data on the different filegroups? What happenens if the primary filegroup gets corrupted? Why backup and restore indexes?… Read more
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12 December 2011
12 December 2011

Administrating SQL Server Integration Services – Planning, Documenting and Troubleshooting

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SQL Server Integration Services is an essential component of SQL Server, and designed to perform a variety of routine and occasional tasks. It majors on ETL tasks and for administrative jobs across servers. The DBA needs also to be aware of their role in optimising SSIS by planning, trouble-shooting, optimising performance, and in documenting installations. … Read more
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22 November 2011
22 November 2011

Administrating SQL Server Reporting Services – Planning, Documenting and Troubleshooting

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DBAs are usually charged with the administration of Reporting Services, but are often short on guidance on how to go about such tasks as planning, documenting and troubleshooting those aspects that are specific to the SSRS service. Feodor gives some tips, custom SSMS reports, and useful TSQL queries, based on his experience.… Read more
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07 April 2011
07 April 2011

Database Documentation – Lands of Trolls: Why and How?

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95
When database documentation is mentioned in an IT Department, everybody nods wisely, yet everyone does their best to avoid doing it. Attention to the database documentation can be the best invertment in time a development group can make. It is essential, and no system can be properly maintained without it. Feodor gives a sensible explanation and guideline for the unloved task of creating database documentation.… Read more
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14 March 2011
14 March 2011

The default trace in SQL Server – the power of performance and security auditing

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Since the introduction of SQL Server 2005, there is a simple lightweight trace that is left running by default on every SQL Server. This provides some very valuable information for the DBA about the running server, but it isn't well-documented. Feodor reveals many of the secrets of this facility and shows how to get reports from it. … Read more
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20 January 2011
20 January 2011

Collecting Performance Data into a SQL Server Table

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Occasionally, when tracking down a performance problem, you have to have information over time on the values of particular sets of performance counters. To track down the more insidious or sporadic problem, it is best to have the data in a SQL Server table, so you can query it. Feodor Georgiev explains the command-line way of doing this. … Read more
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