About Salesforce DEX-450 Exam guide

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Salesforce DEX-450 Exam Syllabus Topics:

Topic	Details
Topic 1	Write a query that traverses a child-to-parent and parent-to-child relationship Creating Roll-Up Summary Fields
Topic 2	Describe the memory lifecycle for static attributes Use Platform Events for Immediate Error Logging
Topic 3	Referencing Custom Controllers and Controller Extensions Use the sObject data type, the primitive data types, and basic control statements in Apex
Topic 4	Describe strategies for Testing Visualforce controllers Use SOQL to Query Parent-Child Relationships
Topic 5	Describe common limit issues and security concerns Launch a Visualforce page using a custom button
Topic 6	Process the result of a query in Apex Understanding Record Types Use trigger context variables

Reference: https://trailhead.salesforce.com/en/academy/classes/dex450-build-applications-programmatically-on-the-salesforce-platform/

For more info read reference:

Salesforce DEX-450 Certification leaning site Salesforce DEX-450 Certification resources

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