> ## Documentation Index
> Fetch the complete documentation index at: https://upstash.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# FLUSHDB

> Delete all keys in current database.

Use `FLUSHDB` to delete every key in the current database.

Since Upstash exposes a single logical database, this removes everything, exactly like [`FLUSHALL`](/docs/redis/commands/server/flushall). `ASYNC` frees the memory in a background thread and `SYNC` frees it before replying.

The deletion is immediate and irreversible. It is a convenient way to reset a test database between runs, and it should never be reachable from application code that runs against production data.

## Syntax

```redis theme={"system"}
FLUSHDB [ASYNC | SYNC]
```

## Arguments

| Argument          | Required | Repeatable | Description                                                                                    |
| ----------------- | -------- | ---------- | ---------------------------------------------------------------------------------------------- |
| `(ASYNC \| SYNC)` | No       | No         | Choose one form: `ASYNC` (request asynchronous cleanup); `SYNC` (request synchronous cleanup). |

## Important points

* This command can expose administrative information or make a broad destructive change. Restrict it to trusted code paths.
* This operation can inspect a large part of the database. Prefer cursor-based scans where possible and avoid unbounded use on hot paths.
* This deletes the database contents. Test against a disposable database and require an explicit operator action in production tooling.

## Response

The reply reports the result of the operation. Error replies have the same shape in RESP2 and RESP3 and are surfaced as exceptions by the SDKs below.

| Protocol | Reply              |
| -------- | ------------------ |
| RESP2    | Simple string `OK` |
| RESP3    | Simple string `OK` |

<Note>
  Client libraries often decode bulk strings, maps, sets, and numeric strings into language-native values. The table describes the Redis wire reply.
</Note>

## Examples

TCP examples use the TLS `REDIS_URL` from the Upstash console. REST examples use `UPSTASH_REDIS_REST_URL` and `UPSTASH_REDIS_REST_TOKEN`.

<AccordionGroup>
  <Accordion title="Redis CLI" icon="terminal">
    ```bash theme={"system"}
    FLUSHDB
    ```
  </Accordion>

  <Accordion title="@upstash/redis" icon="node-js" iconType="brands">
    ```ts theme={"system"}
    import { Redis } from "@upstash/redis";

    const redis = Redis.fromEnv();

    await redis.flushdb();
    ```
  </Accordion>

  <Accordion title="upstash_redis" icon="python" iconType="brands">
    ```python theme={"system"}
    from upstash_redis import Redis

    redis = Redis.from_env()
    result = redis.flushdb()
    print(result)
    ```
  </Accordion>

  <Accordion title="ioredis" icon="node-js" iconType="brands">
    ```ts theme={"system"}
    import Redis from "ioredis";

    const redis = new Redis(process.env.REDIS_URL!);
    const result = await redis.flushdb();
    console.log(result);
    ```
  </Accordion>

  <Accordion title="node-redis" icon="node-js" iconType="brands">
    ```ts theme={"system"}
    import { createClient } from "redis";

    const client = await createClient({ url: process.env.REDIS_URL })
      .on("error", console.error)
      .connect();
    const result = await client.flushDb();
    console.log(result);
    ```
  </Accordion>

  <Accordion title="redis-py" icon="python" iconType="brands">
    ```python theme={"system"}
    import os
    import redis

    client = redis.from_url(os.environ["REDIS_URL"])
    result = client.flushdb()
    print(result)
    ```
  </Accordion>

  <Accordion title="go-redis" icon="golang" iconType="brands">
    ```go theme={"system"}
    package main

    import (
        "context"
        "fmt"
        "os"

        "github.com/redis/go-redis/v9"
    )

    func main() {
        opts, err := redis.ParseURL(os.Getenv("REDIS_URL"))
        if err != nil {
            panic(err)
        }
        client := redis.NewClient(opts)
        result, err := client.FlushDB(context.Background()).Result()
        if err != nil {
            panic(err)
        }
        fmt.Println(result)
    }
    ```
  </Accordion>

  <Accordion title="jedis" icon="java" iconType="brands">
    ```java theme={"system"}
    import java.net.URI;

    import redis.clients.jedis.Jedis;

    try (Jedis jedis = new Jedis(new URI(System.getenv("REDIS_URL")))) {
      Object result = jedis.flushDB();
      System.out.println(result);
    }
    ```
  </Accordion>

  <Accordion title="redis-rs" icon="rust" iconType="brands">
    ```rust theme={"system"}
    use redis::TypedCommands;

    fn main() -> redis::RedisResult<()> {
        let url = std::env::var("REDIS_URL").expect("REDIS_URL is not set");
        let client = redis::Client::open(url)?;
        let mut connection = client.get_connection()?;

        let result = connection.flushdb()?;
        println!("{result:?}");
        Ok(())
    }
    ```
  </Accordion>
</AccordionGroup>


## Related topics

- [FLUSHDB](/docs/redis/sdks/py/commands/server/flushdb.md)
- [FLUSHALL](/docs/redis/commands/server/flushall.md)
- [Key-Based Locking](/docs/redis/features/key-locking.md)
- [FCALL](/docs/redis/commands/functions/fcall.md)