What was the date of vacancy when Viorel Moldovan replaced a manager?
CREATE TABLE table_17115950_2 (
    date_of_vacancy VARCHAR,
    replaced_by VARCHAR
)
SELECT date_of_vacancy FROM table_17115950_2 WHERE replaced_by = "Viorel Moldovan"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What was the date of vacancy when Viorel Moldovan replaced a manager? ### Input: CREATE TABLE table_17115950_2 (
    date_of_vacancy VARCHAR,
    replaced_by VARCHAR
) ### Response: SELECT date_of_vacancy FROM table_17115950_2 WHERE replaced_by = "Viorel Moldovan"