SOQL retrieves Salesforce records using the platform's object and relationship model. Build queries from actual field names and select only the information required.
Before you begin
Use an authorized development or training organization with fictional records. Record the object names, permissions and configuration used so that someone else can reproduce the exercise.
Work through the idea
First describe the business requirement and the records involved. Keep the exercise separate from a live organization's data and change process. Platform behavior can depend on permissions and configuration; verify those conditions rather than assuming an administrator's result applies to every user.
- Inspect object and field API names
- Add explicit filters
- Use appropriate bind values in Apex
Practice task
Retrieve fictional open Opportunities above a chosen amount in a development org.
Check your result
Explain which statuses and amounts are excluded, and handle an empty result.
A mistake to avoid
Do not construct queries by concatenating untrusted input.
Keep a review note
Save the inputs or scenario, your reasoning and the result you checked. Explain one assumption and one case that needs more work. Revise the exercise after feedback and distinguish what you demonstrated from what remains untested.
Official reference for further study
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