SQL Pro · TRIGGER · OLD · NEW

Historicize a catalog modification 1

Retain the value before and after a change is actually executed.

SQL Essentials

Unlock this exercise and continue the path.

Historicize a catalog modification 1 is part of the complete programme: 20 lessons, 180 verifiable exercises and 8 published guided projects.

  • Complete content with explained examples
  • SQL simulator and expected result
  • Detailed answer, common mistakes and challenge
View SQL EssentialsI already have access
Six-month access, one-time payment and no automatic renewal.