Commands- Introduction
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- ZADD
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- BZPOPMAX 5.0
- ZISMEMBER Ent
- ZRANDMEMBER 6.2
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- DBALL Ent 8.1.0
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redis commands hashes hexists
HEXISTS
Redis Developer Course
|
Redis Technical Support
|
Redis Enterprise Server
|
|---|
field가 있는지 조회
사용법은 hexists key field 이다.
있으면 1, 없으면 0을 리턴한다.
Example
| 명령> | hexists user-1 email |
| 결과> | 1 |
| 명령> | hexists user-1 xxx |
| 결과> | 0 |
명령문
HEXISTS key field
- 이 명령은 version 2.0.0 부터 사용할 수 있다.
- 논리적 처리 소요시간은 O(1)이다.
| 관련 명령 | HSET, HMGET, MSET, LPUSH, SADD, ZSET |
| Clients for Java | Jedis, Lettuce, Redisson | Clients for C | Hiredis |
| << HINCRBYFLOAT | HEXISTS | HSETNX >> |
|---|
Email
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