Redis HMSET Command: Usage Guide

In Redis, the HMSET command is used to set values for one or more fields in a hash data type. It takes a key parameter followed by one or more field-value pairs as parameters. If the key does not exist, a new hash data type is created and the values are set for the fields. If the key already exists, it will either overwrite existing field values or add new fields with their respective values.

For example, you can use the HMSET command to set multiple fields in a hash data type named myhash.

HMSET myhash field1 "value1" field2 "value2" field3 "value3"

This will set the values of field1, field2, and field3 to “value1”, “value2”, and “value3” respectively.