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Practise SQL in your browser with SQL Fiddle
Part ten of a sixteen-part series of blogs

Some of our poor delegates don't have the luxury of a home computer to install SQL on (even worse some have made bad life choices and picked a Mac). The good news is that you can still practise your SQL skills in your web browser, using the impressive SQL Fiddle site. Have no fear, SQL Fiddle is here, a browser based sandbox to bring you cheer!

  1. Installing and configuring SQL Fiddle
  2. SQL Fiddle Exercise 1 - SELECT
  3. SQL Fiddle Exercise 2 - Order By
  4. SQL Fiddle Exercise 3 - Numeric Filters
  5. SQL Fiddle Exercise 4 - Date Filter
  6. SQL Fiddle Exercise 5 - Text Filters
  7. SQL Fiddle Exercise 6 - Cast or Convert Functions
  8. SQL Fiddle Exercise 7 - Conditional Function
  9. SQL Fiddle Exercise 8 - Counting Words
  10. SQL Fiddle Exercise 9 - Formatted Dates (this blog)
  11. SQL Fiddle Exercise 10 - Date Calculations
  12. SQL Fiddle Exercise 11 - Inner Join
  13. SQL Fiddle Exercise 12 - Outer Join
  14. SQL Fiddle Exercise 13 - Grouping Data
  15. SQL Fiddle Exercise 14 - Having
  16. SQL Fiddle Exercise 15 - All together now!

Posted by Sam Lowrie on 01 July 2021

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SQL Fiddle Exercise 9 - Formatted Dates

Pulling dates straight out of a database can be a little messy - especially when the column is datetime.

SQL Fiddle

Out of interest the dates appear like this due to ISO 8601 which dictates that dates should be displayed starting with the largest component and ending up with the smallest (so yyyy-MM-dd hh:mm:ss).

 

There are two major ways to change the appearance of dates.  First try using the CONVERT function:

SQL Fiddle

There are lots of date codes to choose from, which can be found here. For this example you should use 105 as a number code.

This is the faster of the two options, but it is restricted to the premade list of date codes. Instead try using FORMAT to show this:

SQL Fiddle

Just watch out when entering the date parts: months are denoted by M and minutes by m.

Check out the answer here.

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