# SINTER

```json metadata
{
  "title": "SINTER",
  "description": "Returns the intersect of multiple sets.",
  "categories": ["docs","develop","stack","oss","rs","rc","oss","kubernetes","clients"],
  "arguments": [{"display_text":"key","key_spec_index":0,"multiple":true,"name":"key","type":"key"}],
  "syntax_fmt": "SINTER key [key ...]",
  "complexity": "O(N*M) worst case where N is the cardinality of the smallest set and M is the number of sets.",
  "group": "set",
  "command_flags": ["readonly"],
  "acl_categories": ["@read","@set","@slow"],
  "since": "1.0.0",
  "arity": -2,
  "key_specs": [{"RO":true,"access":true,"begin_search":{"spec":{"index":1},"type":"index"},"find_keys":{"spec":{"keystep":1,"lastkey":-1,"limit":0},"type":"range"}}],
  "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"}]}
}
```













Returns the members of the set resulting from the intersection of all the given
sets.

For example:

```
key1 = {a,b,c,d}
key2 = {c}
key3 = {a,c,e}
SINTER key1 key2 key3 = {c}
```

Keys that do not exist are considered to be empty sets.
With one of the keys being an empty set, the resulting set is also empty (since
set intersection with an empty set always results in an empty set).

## Examples


SADD key1 "a"
SADD key1 "b"
SADD key1 "c"
SADD key2 "c"
SADD key2 "d"
SADD key2 "e"
SINTER key1 key2


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

[Array reply](../../develop/reference/protocol-spec#arrays): an array with the members of the resulting set.

-tab-sep-

[Set reply](../../develop/reference/protocol-spec#sets): a set with the members of the resulting set.