Read the values corresponding to all keys in redis

Get the values corresponding to all keys from Redis through the following methods: KEYS command: Returns an array of all keys matching the specified pattern. SCAN command: Iterate over the key collection and return key-value pairs in batches until all keys are returned.

How to get the values corresponding to all keys from Redis

Get the values corresponding to all keys from Redis Two methods:

1. Use the KEYS command

KEYSThe command returns all keys matching the given pattern in the form of an array:

KEYS pattern

For example, to get all keys prefixed with "user:", you can use the following command:

KEYS user:*

2. Use the SCAN command

SCANThe command iterates over the keys in the Redis database, returning one batch at a time:

SCAN cursor [MATCH pattern] [COUNT count]

where:

• cursoris the last scan The cursor, the initial value is 0
• patternis the key pattern to be matched; if it is empty, all keys will be matched
• countspecifies each The number of keys returned in each batch; the default is 10

Use theSCANcommand to obtain the values corresponding to all keys as follows:

while True: cursor, keys = redis_client.scan(cursor=cursor, count=100) for key in keys: value = redis_client.get(key) if cursor == 0: break

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