# HSET

```json metadata
{
  "title": "HSET",
  "description": "Creates or modifies the value of a field in a hash.",
  "categories": ["docs","develop","stack","oss","rs","rc","oss","kubernetes","clients"],
  "arguments": [{"display_text":"key","key_spec_index":0,"name":"key","type":"key"},{"arguments":[{"display_text":"field","name":"field","type":"string"},{"display_text":"value","name":"value","type":"string"}],"multiple":true,"name":"data","type":"block"}],
  "syntax_fmt": "HSET key field value [field value ...]",
  "complexity": "O(1) for each field/value pair added, so O(N) to add N field/value pairs when the command is called with multiple field/value pairs.",
  "group": "hash",
  "command_flags": ["write","denyoom","fast"],
  "acl_categories": ["@write","@hash","@fast"],
  "since": "2.0.0",
  "arity": -4,
  "key_specs": [{"RW":true,"begin_search":{"spec":{"index":1},"type":"index"},"find_keys":{"spec":{"keystep":1,"lastkey":0,"limit":0},"type":"range"},"update":true}],
  "tableOfContents": {"sections":[{"id":"examples","title":"Examples"},{"id":"redis-enterprise-and-redis-cloud-compatibility","title":"Redis Enterprise and Redis Cloud compatibility"},{"id":"return-information","title":"Return information"}]}
}
```













Sets the specified fields to their respective values in the hash stored at `key`.

This command overwrites the values of specified fields that exist in the hash.
If `key` doesn't exist, a new key holding a hash is created.

## Examples


> HSET myhash field1 "Hello"
(integer) 1
> HGET myhash field1
"Hello"
> HSET myhash field2 "Hi" field3 "World"
(integer) 2
> HGET myhash field2
"Hi"
> HGET myhash field3
"World"
> HGETALL myhash
1) "field1"
2) "Hello"
3) "field2"
4) "Hi"
5) "field3"
6) "World"


Give these commands a try in the interactive console:


HSET myhash field1 "Hello"
HGET myhash field1
HSET myhash field2 "Hi" field3 "World"
HGET myhash field2
HGET myhash field3
HGETALL myhash


## Redis Enterprise and Redis Cloud compatibility

| Redis<br />Enterprise | Redis<br />Cloud | <span style="min-width: 9em; display: table-cell">Notes</span> |
|:----------------------|:-----------------|:------|
| <span title="Supported">&#x2705; Standard</span><br /><span title="Supported"><nobr>&#x2705; Active-Active</nobr></span> | <span title="Supported">&#x2705; Standard</span><br /><span title="Supported"><nobr>&#x2705; Active-Active</nobr></span> |  |

## Return information

{{< multitabs id="hset-return-info" 
    tab1="RESP2" 
    tab2="RESP3" >}}

[Integer reply](../../develop/reference/protocol-spec#integers): the number of fields that were added.

-tab-sep-

[Integer reply](../../develop/reference/protocol-spec#integers): the number of fields that were added.