salesforce DmlException code example

Example: salesforce DmlException

catch (DmlException de) {
    Integer numErrors = de.getNumDml();
    System.debug('getNumDml=' + numErrors);
    for(Integer i=0;i<numErrors;i++) {
        System.debug('getDmlFieldNames=' + de.getDmlFieldNames(i));
        System.debug('getDmlMessage=' + de.getDmlMessage(i));  
    }