Excel 2016 has given us a plethora of useful – and long overdue – chart types for us to work with. One of these, is the Waterfall Chart I‘ve written before about how to create a Waterfall Chart in Excel – it has long been one of the more challenging chart types to re-create, so
I originally posted this to my LinkedIn Profile, which you can find here, but thought I’d share it on here as well!
Plenty has been said before about whether or not you should use Pie Charts to present your data.
A good article covering their main pitfalls can be found here;
and a slightly lighter take on them can be found here;
Yet, it was my own father who reminded me that Pie Charts can be put to good use, as was the case with Florence Nightingale. (Though, they were of the somewhat more useful Rose Diagram type than bog standard Pie chart, but I take the point!)
Having said that, I came across this little gem, on the BBC news website of all places, which really must be the single worst usage of Pie Charts I’ve ever come across
I was having a discussion with someone the other day on the merits of using PIVOT / Cross-Tab functionality in SQL.
Back when the primary platform I used was Teradata, you didn’t have a PIVOT function, so if you wanted to do something similar to a Pivot, you had to build a series of CASE statements to build your fields up. This was fine, but you had to know beforehand what columns you wanted to have on your output
SQL SERVER (2005+) does provide a PIVOT option, but to be honest, it’s only marginally better than the CASE statement approach – you still have to know what column headings you want in your query.
So, if you want to pivot by the day of the week, that’s fine because there are a fixed number of days in the week and you can account for this.