Storing Hashes in Redis
Explore how to store and manage Redis hash data structures with commands such as HMSET, HGET, HGETALL, HEXISTS, HDEL, and HSETNX. Understand how to insert, retrieve, check, and delete field-value pairs within Redis hashes for organized and efficient data handling.
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We know that the data in Redis is stored as key-value pairs. The value can also be a field-value pair. This is called the Hash data structure. Suppose we need to store the employee ID and name of all the employees within a department. In this case, we can use Hashes in Redis. The key will be the department name, and the value will be the empId-empName pair.
Let’s look at some of the commands used to insert and retrieve data from hashes in Redis.
HMSET command
The HMSET command is used to store a hash in Redis. The syntax of this command is:
HMSET key field value
In the example below, we are storing employee data in the finance department.
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