Lesson 7 of 8

Automate an audit with triggers

Use OLD, NEW, BEFORE, and AFTER without creating invisible logic.

45 minPostgreSQL Pro

By the end of this lesson

  • Create a trigger function
  • Choose BEFORE or AFTER
  • Avoid recursion

SQL Essentials

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Automate an audit with triggers is part of the complete programme: 38 lessons, 62 verifiable exercises and 8 published guided projects.

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