Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) : DEX-450日本語 exam

DEX-450日本語
  • Exam Code: DEX-450J
  • Exam Name: Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版)
  • Updated: Aug 22, 2026
  • Q & A: 202 Questions and Answers

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About Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) : DEX-450日本語 Exam Questions

Average Salary for Salesforce DEX-450 Exam Certified Professional

Salesforce administrator roles are in great demand nowadays. The average salaries of Salesforce DEX-450 exam Certified professional in:

  • England - 70,400 POUND
  • United State - 105,100 USD
  • India - 16,42,330 INR
  • Europe - 72,300 Euro

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Benefits in Obtaining Salesforce DEX-450 Certification

71 percent of bachelor's degree expert methodology and energetic methodology certified methodologists receive up to another 16 percent are recorded in the Salesforce annual analytical compensation survey. The certification from Salesforce DEX-450 strengthens your expertise as well as your know-how to ensure that your views are agile in a system of market research. The physical test applicants of the Salesforce DEX-450 certification perceive a fresh advantage on other comrades when being interviewed. In the project market, aspirants find themselves even more aggressive. Salesforce DEX-450 is understood worldwide so that certified aspirants, along with methods of organizational analysis, are simply more self-confident.

The DEX-450 qualification from Salesforce enhances your expertising and expertise to apply an agile perspective within a system of corporate research. At the interview DEX-450 examiners pick a corner over other comrades. In the labour market, aspirants are more competitive.

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Introduction to Salesforce DEX-450 Exam

This qualification concentrates on the programmer's validation of abilities, such as the programming of programs. Salesforce DEX-450 certification acknowledges that the applicant has the potential to conform his / her Salesforce applications to the heart of the Pinnacle programming language and the visual power diagram. The credential offers a better indicator of the competences which you have established to provide prospective employers. Professionals need to gain functional expertise in constructing and programming data objects (sObjectiles) to retrieve, modify and store data from these objects. Specify custom logic with Apex triggers and classes and use the built-in testing system to test this logic. This Guide covers all facets of the DEX-450 Test, the salary of the accredited specialist Salesforce DEX-450 and all the aspects of the Salesforce DEX-450 certification.

The Salesforce DEX-450 exam is a competency qualification test that acknowledges your capability growth. You need industry expertise to attempt the test. Professionals should execute the following duties following certification:

  • Using the combined Apex and Visual Powers evaluation system.
  • Describe how the trigger code functions in the Save Execution Order
  • Describe a range of the main features of multi-tenant programme architecture
  • Write customizations of business logic using triggers and classes from Apex. SOQL and DML are used with these customizations.
  • Using a declarative GUI to build and change subjects
  • Write Visualforce and code for user interface setup
  • Develop programmatic implementations that benefit from declarative personalizations

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

Salesforce DEX-450 Certification Path

You must get an idea of exactly what this certification is, before investing your valuable time, effort, or money in Salesforce. The demand and the need for Salesforce certified professionals are rapidly growing and so Salesforce Admin Certification is becoming more and more popular. Different types of online training sessions are provided such as Intellipaat 's online training sessions for the Salesforce Admin Qualification cost around $510 USD. It is instructor-led teaching by subject professionals working in major organizations. This style of training includes live sessions with the teacher, along with a forum where you can clear all your course-based doubts.

Self-paced sessions are also offered at the cost of $227 USD. This training mode involves pre-recorded video sessions. You can conveniently return to these talks and revisit the subjects you have skipped whether you have any difficulties with the lectures or have difficulty keeping up with the online meetings. You will also use these sessions to finish your exercise at your speed while you access these online lessons throughout your life.

Salesforce DEX-450日本語 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Apex Fundamentals10%- Apex Primitives
  • 1. Date, Datetime, Time classes
  • 2. ID and sObject types
  • 3. Integer, Double, Long, String, Boolean types
- Apex Basics
  • 1. DML operations (insert, update, delete, etc.)
  • 2. Apex variables and data types
  • 3. Using SOQL to query Salesforce data
  • 4. Apex operators and control flow statements
Topic 2: Asynchronous Apex10%- Batch Apex
  • 1. Database.Stateful
  • 2. start(), execute(), and finish() methods
  • 3. Database.Batchable interface
- Future Methods
  • 1. AsyncRequestLimit exceeded handling
  • 2. @future annotation
Topic 3: Working with Data - SOQL and SOSL15%- SOSL (Salesforce Object Search Language)
  • 1. Returning sObjects from SOSL
  • 2. SOSL syntax and use cases
- SOQL (Salesforce Object Query Language)
  • 1. Basic SOQL queries
  • 2. Query options (LIMIT, ORDER BY, WHERE)
  • 3. Relationship queries (parent-child, child-parent)
  • 4. Aggregate functions (COUNT, SUM, AVG, MIN, MAX)
Topic 4: Apex Transaction Management10%- Governor Limits
  • 1. SOQL query limits
  • 2. CPU time and heap size limits
  • 3. DML statement limits
- Transaction Control
  • 1. Savepoint and rollback
  • 2. Database methods with allOrNone parameter
  • 3. System.debug() usage
Topic 5: Apex Testing13%- Testing Best Practices
  • 1. Assert statement usage
  • 2. Coverage requirements (75% for deployment)
  • 3. Using seeAllData=false for isolated tests
- Test Classes
  • 1. @isTest annotation
  • 2. Test data creation methods
  • 3. Test.startTest() and Test.stopTest()
Topic 6: Apex Triggers12%- Trigger Syntax and Context Variables
  • 1. Trigger.newMap and Trigger.oldMap
  • 2. Trigger.old and Trigger.new context variables
  • 3. Trigger events (before insert, after insert, etc.)
- Trigger Best Practices
  • 1. Recursive trigger prevention
  • 2. One trigger per object pattern
  • 3. Handler class patterns
Topic 7: Visualforce Pages8%- VF Standard Components
  • 1. , ,
  • 2. ,
  • 3. Action methods and pageReference
- VF Page Basics
  • 1. component structure
  • 2. Controllers and controller extensions
  • 3. Visualforce expressions
Topic 8: Apex Classes and Interfaces12%- Apex Classes
  • 1. Access modifiers (public, private, protected, global)
  • 2. Class structure (attributes, methods, constructors)
  • 3. Inheritance and virtual/abstract classes
- Apex Interfaces
  • 1. Interface definition and implementation
  • 2. When to use interfaces

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