{
  "schema_version": 2,
  "id": "commands/zinterstore",
  "title": "ZINTERSTORE",
  "url": "https://redis.io/docs/latest/commands/zinterstore/",
  "summary": "Stores the intersect of multiple sorted sets in a key.",
  "since": "2.0.0",
  "tags": [
    "docs",
    "develop",
    "stack",
    "oss",
    "rs",
    "rc",
    "oss",
    "kubernetes",
    "clients"
  ],
  "last_updated": "2026-09-18T09:48:43+01:00",
  "page_type": "content",
  "content_hash": "8232d6c34ca31b1d2ea915a1e2e27a3e2da6fe68a3e136405ef50d7d62ef2dc4",
  "sections": [
    {
      "id": "overview",
      "title": "Overview",
      "role": "overview",
      "text": "> [!NOTE]\n> This command's behavior varies in clustered Redis environments. See the [multi-key operations](https://redis.io/docs/latest/develop/using-commands/multi-key-operations) page for more information.\n\n\nComputes the intersection of `numkeys` sorted sets given by the specified keys,\nand stores the result in `destination`.\nIt is mandatory to provide the number of input keys (`numkeys`) before passing\nthe input keys and the other (optional) arguments.\n\nBy default, the resulting score of an element is the sum of its scores in the\nsorted sets where it exists.\nBecause intersection requires an element to be a member of every given sorted\nset, this results in the score of every element in the resulting sorted set to\nbe equal to the number of input sorted sets.\n\nFor a description of the `WEIGHTS` and `AGGREGATE` options, see [`ZUNIONSTORE`](https://redis.io/docs/latest/commands/zunionstore).\n\nIf `destination` already exists, it is overwritten."
    },
    {
      "id": "required-arguments",
      "title": "Required arguments",
      "role": "content",
      "text": "<details open><summary><code>destination</code></summary>\n\nThe key to store the resulting sorted set in.\n\n</details>\n\n<details open><summary><code>numkeys</code></summary>\n\nThe number of keys that follow.\n\n</details>\n\n<details open><summary><code>key [key ...]</code></summary>\n\nOne or more sorted-set keys to intersect.\n\n</details>"
    },
    {
      "id": "optional-arguments",
      "title": "Optional arguments",
      "role": "parameters",
      "text": "<details open><summary><code>WEIGHTS weight [weight ...]</code></summary>\n\nA multiplication factor for each input set; each set's scores are multiplied by its weight before aggregation. Defaults to 1 for every set.\n\n</details>\n\n<details open><summary><code>AGGREGATE SUM | MIN | MAX | COUNT</code></summary>\n\nHow to combine the scores of members that exist in multiple sets: `SUM` (the default), `MIN`, `MAX`, or `COUNT`.\n\n</details>"
    },
    {
      "id": "examples",
      "title": "Examples",
      "role": "example",
      "text": "redis> ZADD zset1 1 \"one\"\n(integer) 1\nredis> ZADD zset1 2 \"two\"\n(integer) 1\nredis> ZADD zset2 1 \"one\"\n(integer) 1\nredis> ZADD zset2 2 \"two\"\n(integer) 1\nredis> ZADD zset2 3 \"three\"\n(integer) 1\nredis> ZINTERSTORE out 2 zset1 zset2 WEIGHTS 2 3\n(integer) 2\nredis> ZRANGE out 0 -1 WITHSCORES\n1) \"one\"\n2) \"5\"\n3) \"two\"\n4) \"10\""
    },
    {
      "id": "redis-software-and-redis-cloud-compatibility",
      "title": "Redis Software and Redis Cloud compatibility",
      "role": "content",
      "text": "| Redis<br />Software | Redis<br />Cloud | <span style=\"min-width: 9em; display: table-cell\">Notes</span> |\n|:----------------------|:-----------------|:------|\n| <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> |  |"
    },
    {
      "id": "return-information",
      "title": "Return information",
      "role": "returns",
      "text": "**RESP2:**\n\n[Integer reply](../../develop/reference/protocol-spec#integers): the number of members in the resulting sorted set at the _destination_.\n\n**RESP3:**\n\n[Integer reply](../../develop/reference/protocol-spec#integers): the number of members in the resulting sorted set at the _destination_."
    }
  ],
  "examples": []
}