Practice: Redis Data Type Examples (CLI)

[Redis CLI 실행]

• Redis CLI 실행

  127.0.0.1:6379> ping
  PONG

[Redis 데이터 타입 실습]

• String 데이터 저장 및 조회

  127.0.0.1:6379> SET myKey "Hello Redis!"
  OK
  127.0.0.1:6379> GET myKey
  "Hello Redis!"

• TTL 만료시간 설정 및 확인

  127.0.0.1:6379> GET myKey
  "Hello Redis!"
  127.0.0.1:6379> expire myKey 1
  (integer) 1
  127.0.0.1:6379> GET myKey

• List 데이터 추가 및 조회(LPUSH, LRANGE)

  127.0.0.1:6379> LPUSH myList "Task1"
  (integer) 1
  127.0.0.1:6379> LPUSH myList "Task2"
  (integer) 2
  127.0.0.1:6379> LPUSH myList "Task3"
  (integer) 3
  127.0.0.1:6379> LRANGE myList 0 -1
  1) "Task3"
  2) "Task2"
  3) "Task1"

• 완료된 일 제거 (LPOP)

  127.0.0.1:6379> LPOP myList
  "Task3"

• SET 데이터 추가 및 조회(SADD, SMEMBERS)

  127.0.0.1:6379> SADD mySet "apple"
  (integer) 1
  127.0.0.1:6379> SMEMBERS mySet
  1) "apple"
  127.0.0.1:6379> SADD mySet "banana"
  (integer) 1
  127.0.0.1:6379> SMEMBERS mySet

• Sorted Set 데이터 추가 및 조회(ZADD, ZRANGE)

  127.0.0.1:6379> ZADD mySortedSet 1 "TaskA"
  (integer) 1
  127.0.0.1:6379>
  127.0.0.1:6379> ZADD mySortedSet 2 "TaskB"
  (integer) 1
  127.0.0.1:6379>
  127.0.0.1:6379> ZRANGE mySortedSet 0 -1 WITHSCORES
  1) "TaskA"
  2) "1"
  3) "TaskB"
  4) "2"
  127.0.0.1:6379> ZADD mySortedSet 3 "TaskC"
  (integer) 1
  127.0.0.1:6379> ZADD mySortedSet 2 "TaskD"
  (integer) 1
  127.0.0.1:6379> ZRANGE mySortedSet 0 -1 WITHSCORES
  1) "TaskA"
  2) "1"
  3) "TaskB"
  4) "2"
  5) "TaskD"
  6) "2"
  7) "TaskC"
  8) "3"

• Hash 데이터 추가 및 조회(HSET, HGETALL)

  27.0.0.1:6379> HGETALL myHash
  (empty array)
  127.0.0.1:6379> HSET myHash name "Alice"
  (integer) 1
  127.0.0.1:6379> HSET myHash age "30"
  (integer) 1
  127.0.0.1:6379> HGETALL myHash
  1) "name"
  2) "Alice"
  3) "age"
  4) "30"
  127.0.0.1:6379>
  127.0.0.1:6379> HGETALL myHash
  1) "name"
  2) "Alice"
  3) "age"
  4) "30"

[데이터 삭제 및 만료 설정]

• DEL을 활용한 삭제

  DEL myKey
  DEL myList
  DEL mySet
  DEL mySortedSet
  DEL myHash

• 특정 시간 후 자동 삭제(EXPIRE)

  SET tempKey "This will expire soon"
  EXPIRE tempKey 5
  TTL tempKey