Database: yelp
Question: Find all cities in Texas in which there is a restaurant called " MGM Grand Buffet "
SQL:
SELECT t1.city FROM category AS t2 JOIN business AS t1 ON t2.business_id  =  t1.business_id WHERE t1.name  =  "MGM Grand Buffet" AND t1.state  =  "Texas" AND t2.category_name  =  "restaurant";