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How to view data in redis

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Release: 2024-04-20 03:05:45
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The method of viewing Redis data mainly depends on the data type: String type: GET, STRLEN List type: LRANGE, LINDEX, LLEN Hash type: HGET, HGETALL, HLEN Collection type: SMEMBERS, SCARD, SISMEMBER Yes Ordinal collection types: ZRANGE, ZRANGEBYSCORE, ZCARD Common methods: TYPE, EXISTS, DEL

How to view data in redis

Common methods for viewing data in Redis

Redis provides multiple ways to view data, depending on the type of data stored.

String type

  • GET key: Get the value of the specified key.
  • STRLEN key: Get the string length of the specified key.

List type

  • LRANGE key start end:Get the specified start position to the specified end position in the specified list elements between.
  • LINDEX key index: Get the element at the specified index in the specified list.
  • LLEN key: Get the length of the specified list.

Hash type

  • HGET key field: Get the value of the specified field in the specified hash.
  • HGETALL key: Get all key-value pairs of the specified hash.
  • HLEN key: Get the number of fields of the specified hash.

Collection type

  • SMEMBERS key: Get all members in the specified collection.
  • SCARD key: Get the number of members of the specified collection.
  • SISMEMBER key member: Check whether the specified member is in the specified set.

Ordered set type

  • ZRANGE key min max:Get the specified minimum score in the specified ordered set to Specifies the maximum score among members.
  • ZRANGEBYSCORE key min max: Get the members in the specified sorted set whose scores are between the specified minimum score and the maximum score.
  • ZCARD key: Get the number of members of the specified ordered set.

General method

  • TYPE key: Get the type of the specified key.
  • EXISTS key: Check whether the specified key exists.
  • DEL key: Delete the specified key.

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