String and Hash

String

A string is one of the simplest data types, which makes it a good starting point to learn Redis. Despite its simplicity, it’s quite versatile. It can be used to cache a simple value for a key or a complex result of a SQL query. In addition to this, it can also be used for bitwise operations and as atomic counters.

Note: By default, the maximum size of a Redis string value is 512 MB.

Let’s go over some of the common String operations.

• Set

• Apply Time-to-Live (TTL)

• Incr, IncrBy

• SetArgs

• GetRange

Set

We can set a key to a string value. In this example, the key foo is set to the value bar using the Set method.