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Month: April 2022

Beware of floats

Beware of floats

I am currently volunteering as an instructor to teach young women about Data & SQL. Right in the first module we covered core data types as shown here: For this blog post I’d like to write about FLOAT and DECIMAL and why in most cases I think that DECIMAL is a much better choice. Approximate values According to the MySQL documentation float (and double) represent approximate numeric data values This is the reason where the general problem comes from. But…

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Continue your learning journey in SQL

Continue your learning journey in SQL

It has already been three weeks since the end of the Code First Girls course on Data & SQL. We have celebrated the achievements on LinkedIn. I am greatly impressed by the final projects of my students. This article is for them to show possibilities how to continue learning SQL and excel as well as for others who have just begun their journey with SQL. It is well-known that practice is essential for mastering any new subject learnt. One way…

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