when was the next coach appointed after niger tornadoes fired their coach?
CREATE TABLE table_28164986_4 (date_of_appointment VARCHAR, manner_of_departure VARCHAR, team VARCHAR)
SELECT date_of_appointment FROM table_28164986_4 WHERE manner_of_departure = "fired" AND team = "Niger Tornadoes"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_28164986_4 (date_of_appointment VARCHAR, manner_of_departure VARCHAR, team VARCHAR) Question: when was the next coach appointed after niger tornadoes fired their coach? [/INST] SELECT date_of_appointment FROM table_28164986_4 WHERE manner_of_departure = "fired" AND team = "Niger Tornadoes" </s>