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Are GetInstance and GetValues methods of custom setting same? According to the documentation here http://www.salesforce.com/us/developer/docs/apexcode/Content/apex_methods_system_custom_settings.htm both seem to be same. What you guys think?

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here's some good commentary from Rich Unger, former PMTS @ Salesforce.com - Rich's Rule of Thumb When Working With Custom Settings: Use getValues() when you’re writing custom settings, and use getInstance() when reading them. –  user320 Feb 24 '13 at 20:56

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up vote 2 down vote accepted

You are right both return same Object.I personally prefer the getInstance() method as it makes more sense to me. You access a record by using the value in the Name column (you cannot use the ID or other columns).

 Foundation_Countries__c myCS1 = Foundation_Countries__c.getValues('United States');
 String myCCVal = myCS1.Country_code__c;
 Foundation_Countries__c myCS2 = Foundation_Countries__c.getInstance('United States');
 String myCCInst = myCS2.Country_code__c;
 system.assertEquals(myCCinst, myCCVal);

The following confirms that both return same .

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