SQL Pro · TRIGGER · OLD · NEW
Logging an HR modification 4 · training scenario
Retain the value before and after a change is actually executed. You must produce the result, control it on the source data and explain what it allows you to decide in this human resources management.
SQL Essentials
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Logging an HR modification 4 · training scenario is part of the complete programme: 38 lessons, 62 verifiable exercises and 8 published guided projects.
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