what is the venue when the event is 4x400 m relay and the competition is asian championships?
CREATE TABLE table_name_7 (venue VARCHAR, event VARCHAR, competition VARCHAR)
SELECT venue FROM table_name_7 WHERE event = "4x400 m relay" AND competition = "asian championships"
### Context: CREATE TABLE table_name_7 (venue VARCHAR, event VARCHAR, competition VARCHAR) ### Question: what is the venue when the event is 4x400 m relay and the competition is asian championships? ### Answer: SELECT venue FROM table_name_7 WHERE event = "4x400 m relay" AND competition = "asian championships"