📅  最后修改于: 2022-03-11 14:59:43.804000             🧑  作者: Mango
/*
To check to see if a key exists in a Redis database,
you can run the query EXISTS, which will return a 1 if the key is found
and a 0 if the key is not found.
*/
SET title "My Post"
EXISTS title <== returns 1 if found