dify-docs/en/tutorials/vector-database-migrate-too...

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# Vector Database Migrate Tool
When you want to switch to another vector database, you can deactivate or delete the original vector database after switching.
## How to use
### Step:
1. If you are starting from local source code, modify the environment variable in the `.env` file to the vector database you want to migrate to.
For example: 
```
VECTOR_STORE=qdrant
```
2. If you are starting from `docker compose`, modify the environment variable in the `docker-compose.yaml` file to the vector database you want to migrate to, both api and worker are all needed.
For example:
```
# The type of vector store to use. Supported values are `weaviate`, `qdrant`, `milvus`.
VECTOR_STORE: qdrant
```
3. run the below command in your terminal or docker container
```
flask vdb-migrarte
```