Cut and reshape text in SQL
SQL interview exercise on Strings, Dates & CASE, difficulty 1 of 3. Solve it in the editor beside a worked example, or cold in Interview mode with the example hidden; the tests run the moment you do.
For every customer return their first name (the text before the first space) and a tag made of the first three letters of their city in upper case. Columns: name, first_name, tag. Sorted by name.
Each exercise pairs a worked example with a twin problem to solve in a real editor; the tests run the moment you do. Interview mode hides the example: solve it from memory, without the hint or the solution, and it counts as solved cold. Progress is saved in your browser, and in your account if you sign in.