Discussion on: What was the hardest concept you had to wrap your head around?

[Arika O]

SQL is very tricky in the beginning, especially if the only data-bases you used until then are shopping lists :). Thank you for the input.

[Pacharapol Withayasakpunt]

Problems with database in general, actually

• Relationships and Foreign key constraints
• Maintenance, updating, altering tables / columns, migrations and changing schemas.
• Triggers. SQL-native, but not the-other-side-native programming.