Phil Factor

Phil Factor (real name withheld to protect the guilty), aka Database Mole, has 40 years of experience with database-intensive applications. Despite having once been shouted at by a furious Bill Gates at an exhibition in the early 1980s, he has remained resolutely anonymous throughout his career. See also :

Follow Phil Factor via
27 September 2018
27 September 2018

Extended Events Workbench

0
26
The Extended Events (or XEvents) feature has been part of SQL Server since 2008, but many database professionals struggle to get started using it. In this article, Phil Factor demonstrates several useful Extended Event sessions that measure just one thing in each. He then provides the code necessary to parse the resulting XML into something you can use.… Read more
0
26
08 August 2018
08 August 2018

Spoofing Data Convincingly: Credit Cards

0
13
I haven’t seen a SQL Server table with real unencrypted credit card numbers for several years, and I don’t know of any good reasons to have them stored that way. However, I’ve needed them in the past for testing a web application that had to take credit card details. Generating credit cards in a way … Read more
0
13
17 July 2018
17 July 2018

Spoofing Data Convincingly: Altering Table Data

0
6
When you are developing an existing database, or demonstrating it, you nowadays need pseudonymised data, or even better, completely anonymized data. This data has to look right at first glance, and it needs to have the same distribution as the real data. Although we are yet to tackle continuous variables with complicated distributions such as … Read more
0
6
08 April 2018
08 April 2018

SQL Code Smells

0
41
Some time ago, Phil Factor wrote his booklet 'SQL Code Smells', collecting together a whole range of SQL Coding practices that could be considered to indicate the need for a review of the code. It was published as 119 code smells, even though there were 120 of them at the time. Phil Factor has continued to collect them and the current state of the art is reflected in this article. SQL Prompt is committed to cover as many as possible of them. Phil has also updated his book which you can download here.… Read more
0
41
07 March 2018
07 March 2018

Using Stored Procedures in SQL Server that return several results.

0
72
Stored Procedures give you more freedom than functions, and so they would be the obvious way of developing processes in SQL Server. There is one longstanding problem with them though, although it is possible to send several results to the application from a stored procedure and read them without problems, you have big problems capturing more … Read more
0
72
03 March 2018
03 March 2018

Scripting the Description of Database Tables Using Extended Properties

0
14
Stored procedures, for example, are very easy to document. The comment block at the beginning stays with the code and a CREATE or ALTER script contains everything to reproduce the proc. SQL Server tables, however, are more difficult to document. You can use Extended Properties to document columns and constraints, but working with Extended Properties is difficult at best. Phil Factor demonstrates ways to easily add Extended Properties to your build scripts. … Read more
0
14