How to view data in redis

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

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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