This question runs in a pre-configured Salesforce environment - no personal connection required.

Create a method that queries all accounts from the database and groups them by country into a Map. The key should be the country name and the value should be a list of account names from that country.

Examples:

Input: Query all accounts from database Output: {'USA' => ['GlobalTech Solutions', 'Cloud Code Academy', 'TechFlow Solutions'], 'Canada' => ['EcoLogic Solutions', 'NextGen Media'], 'Germany' => ['Precision Manufacturing']} Explanation: Accounts grouped by their BillingCountry field Input: Database with no accounts Output: {} Explanation: Empty result returns empty map Input: Database with accounts having null BillingCountry Output: {'Unknown' => ['Mystery Corp']} Explanation: Null countries treated as 'Unknown'
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