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The Voice of the DBA

Good Practices for Software Development

This editorial was originally published on Apr 24, 2014. It is being re-published as Steve is out of the office.

Would you post your password on a wall in your office? Of course not, because other employees, the cleaning crew, even guests walking around your office would be able to access your system with your account. When I read Brian Kelly's post on passwords in files, that's what I thought of. Sticking credentials in a file, where they're subject to any kind of search, is a bad idea.

However this happens all the time. Combine this with a few other "common practices" like using sa to connect to a database and building dynamic SQL, and you might as well just set blank passwords and invite someone to have fun with your database. It's sad that we continue to see these types of software development practices in 2014, and especially poor to see them from companies that sell software.

There is so much information out there on building software that is of higher quality and is much more secure. However all too often I find developers just aren't implementing these practices. There are probably a myriad of reasons why, and I wish we had more ways to better train people, disseminate the information, and enforce it's use.

Ultimately we can only do what we can. However I'd encourage those of you that see poor practices taking place to have a word with the developer (internally), or send a note to the vendor. If it's more important to make a few more dollars than implement better practices, I'd encourage you to publicly call some attention to the matter. Maybe a little exposure to the dark side of software development will pressure managers to require more secure work over time.

Steve Jones from SQLServerCentral.com

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Yesterday's Question of the Day

Yesterday's Question (by Steve Jones):

I want to import a file into my R session. The file is loaded in f:\datasets\NFL. However, when I try to read the file, I get this:

> read.file("2016QB.tsv", sep="\t")

Error: could not find function "read.file"

I need to set the working folder of my session. How can I set this to the correct folder?

Answer: setwd("f:/Datasets/NFL")

Explanation:

The correct answer here is the setwd() function with the path included. The path needs forward slashes to work.

The backslash is an escape character in R.  An alternative for doing this is :

setwd("f:\\Datasets\\NFL")

Ref: Data Import - click here


» Discuss this question and answer on the forums

Featured Script

Generate scripts for SQL Server Management Studio diagrams

Jonas Gunnarsson from SQLServerCentral.com

The procedure generates an import script for SQL Server Management Studio diagrams.
Easy to use, takes one diagram name and an optional parameter, if is first diagram to script.

List the database diagram for current database:


select * from sysdiagrams;


The script is based on several other scripts, see the References in script.

Example of usage:


execute tool.ScriptDiagram 'First', 1;
execute tool.ScriptDiagram 'Second', 0;
execute tool.ScriptDiagram 'Third', 0;

Further reading

(fixed links and use only tab in code)

(2017-10-23 cleanup procedure)

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