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This article is to share with you about the use of Hash in Redis data type manipulation. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

1. Hset

Format: hset 'name'' key' 'value'

Add an object called name that contains the key-value pair of key-value.

2. Hget

Format: hget 'name'' key'

Gets a value named name object key.

3. Hsetnx

Format: hsetnx 'name'' key' 'value'

Add an object named name. If name already exists, neither add nor modify the original value, and return 0; if it does not exist, add it and return 1.

4. Hmset

Format: hmset 'name'' key1' 'value1'' key2' 'value2'...

Add an object called name with multiple key-value key-value pairs.

5. Hmget

Format: hmget 'name'' key1' 'value1'' key2' 'value2'...

Gets the value values of multiple key named name objects.

6. Hincrby

Format: hincrby 'name'' key' ±{num}

Let the value of the key named name object increase by num, automatically initialize to 0 if it does not exist, and decrease if the num is negative.

7. Hexists

Format: hexists' name' 'key'

Determine whether a key named name object exists.

8. Hlen

Format: hlen 'name'

Gets the number of key named name object.

9. Hdel

Format: hdel 'name'' key1' 'key2'...

Delete the key-value key-value pair named name object.

10. Hkeys

Format: hkeys' name'

Get the names of all key named name objects.

11. Hvals

Format: hvals' name'

Gets all the value values of the object named name.

12. Hgetall

Format: hgetall 'name'

Gets all the key-value values named name objects.

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