# DECR

```json metadata
{
  "title": "DECR",
  "description": "Decrements the integer value of a key by one. Uses 0 as initial value if the key doesn't exist.",
  "categories": ["docs","develop","stack","oss","rs","rc","oss","kubernetes","clients"],
  "arguments": [{"display_text":"key","key_spec_index":0,"name":"key","type":"key"}],
  "syntax_fmt": "DECR key",
  "complexity": "O(1)",
  "group": "string",
  "command_flags": ["write","denyoom","fast"],
  "acl_categories": ["@write","@string","@fast"],
  "since": "1.0.0",
  "arity": 2,
  "key_specs": [{"RW":true,"access":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"}]}
}
```













Decrements the number stored at `key` by one.
If the key does not exist, it is set to `0` before performing the operation.
An error is returned if the key contains a value of the wrong type or contains a
string that can not be represented as integer.
This operation is limited to **64 bit signed integers**.

See [`INCR`](https://redis.io/docs/latest/commands/incr) for extra information on increment/decrement operations.

## Examples


SET mykey "10"
DECR mykey
SET mykey "234293482390480948029348230948"
DECR mykey


## 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="decr-return-info" 
    tab1="RESP2" 
    tab2="RESP3" >}}

[Integer reply](../../develop/reference/protocol-spec#integers): the value of the key after decrementing it.

-tab-sep-

[Integer reply](../../develop/reference/protocol-spec#integers): the value of the key after decrementing it.