Dissolve sugar in boiling water in a small bowl. Add vinegar; cover and chill 2 hours.
Combine cucumber and next 9 ingredients in a bowl. Pour chilled vinegar mixture over cucumber mixture; toss gently. Yield: 5 servings (serving size: 1 cup).
Per serving: 35 Calories; 0g Fat (2% calories from fat); 1g Protein; 9g Carbohydrate; 0mg Cholesterol; 220mg Sodium