# MD_LAST_QUERY_ID


> Use MD_LAST_QUERY_ID() to get the UUID of the most recent query sent to MotherDuck.

`MD_LAST_QUERY_ID()` is a scalar function that returns the UUID of the most recent query sent to the MotherDuck server from the current DuckDB [connection](/key-tasks/authenticating-and-connecting-to-motherduck/connecting-to-motherduck/#create-a-connection). This is the same `QUERY_ID` that appears in the [`QUERY_HISTORY`](../md_information_schema/query_history.md) and [`RECENT_QUERIES`](../md_information_schema/recent_queries.md) views.

The function returns `NULL` if no query has been sent to the server yet on the current connection.

## Syntax

```sql
SELECT MD_LAST_QUERY_ID();
```

## Return type

`UUID`: the unique identifier of the last query, or `NULL` if no server-side query has been run.

## Example usage

### Get the ID of your last query

```sql
SELECT MD_LAST_QUERY_ID();
```

### Look up details for last query from this connection in the query history

```sql
SELECT *
FROM MD_INFORMATION_SCHEMA.QUERY_HISTORY
WHERE QUERY_ID = MD_LAST_QUERY_ID();
```


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