RENAMENX

RENAMENX key newkey

当且仅当 newkey 不存在时,将 key 改名为 newkey

key 不存在时,返回一个错误。

可用版本:

>= 1.0.0

时间复杂度:

O(1)

返回值:

修改成功时,返回 1 。如果 newkey 已经存在,返回 0

# newkey 不存在,改名成功

redis> SET player "MPlyaer"
OK

redis> EXISTS best_player
(integer) 0

redis> RENAMENX player best_player
(integer) 1

# newkey存在时,失败

redis> SET animal "bear"
OK

redis> SET favorite_animal "butterfly"
OK

redis> RENAMENX animal favorite_animal
(integer) 0

redis> get animal
"bear"

redis> get favorite_animal
"butterfly"
Copyright © Kilvn 2021 all right reserved,powered by Gitbook最后更新时间: 2021-06-04 19:45:19

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