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Class declaration Constructor Properties Getters and setters Static members Inheritance virtual and override Interfaces Abstract classes Inner classes
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Apex Complete Course / Triggers

before update trigger

Learn before update trigger in Apex with a construct-specific explanation, a unique example, a practical boundary, and a mastery check.

12 min read • Intermediate

before update trigger is an atomic Apex topic inside Triggers. The example below uses the actual construct named by the lesson rather than a generic placeholder.

Focus on what before update trigger changes: the input, binding, control path, object state, collection, runtime effect, or language contract. Then alter one value and verify that the behavior changes for a reason specific to this feature.

Topic-specific example

apex-05-03-before-update-trigger.cls
apex Try It Live 
trigger AccountBeforeUpdate on Account (before update) { for(Account a:Trigger.new){ if(a.Name==null) a.Name='Unknown'; } }
Edge case / engineering note

Validate the data scope and transaction impact. A correct example must use the actual query or data-change construct named by the lesson.

Content source & attribution
Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

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