Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_30 (silver INTEGER, gold VARCHAR, nation VARCHAR)
### Question:
What is the low silver total for switzerland with over 0 golds?
### Answer:
SELECT MIN(silver) FROM table_name_30 WHERE gold > 0 AND nation = "switzerland"