adding a solution of a challange (Ordering When Concatenating)

[SedaArat]

No description provided.

[remram44]

Hi @SedaArat, thank you for your contribution! Unfortunately that doesn't work:

sqlite> SELECT group_concat(personal || ' ' || family, ", ") FROM Person ORDER BY family;
William Dyer, Frank Pabodie, Anderson Lake, Valentina Roerich, Frank Danforth

As you can see, Frank Danforth comes last.

[SedaArat]

Hi @remram44, the list is the same as the list provided as an output. To order the list by surname, it could be: SELECT group_concat(personal || ' ' || family, ", ") FROM person GROUP BY family;

The output is:
Frank Danforth
William Dyer
Anderson Lake
Frank Pabodie
Valentina Roerich

[remram44]

Relying on GROUP BY to sort outputs is not a good idea. SQLite might do it, but other SQL systems might not give out the groups in sorted order.

This new query also introduces an additional bug: if two people have the same family name, only one of them would be printed 😉