Sample demonstrating how to create a dataset in BigQuery. Give the dataset a unique name. Note, that the geographic location for the location can not be changed once the dataset is created.

## Explore further


For detailed documentation that includes this code sample, see the following:

- [Create datasets](https://docs.cloud.google.com/bigquery/docs/datasets.md.txt)
- [Get started with authentication](https://docs.cloud.google.com/bigquery/docs/authentication/getting-started.md.txt)

## Code sample

### C#


Before trying this sample, follow the C# setup instructions in the
[BigQuery quickstart using
client libraries](https://docs.cloud.google.com/bigquery/docs/quickstarts/quickstart-client-libraries).


For more information, see the
[BigQuery C# API
reference documentation](https://docs.cloud.google.com/dotnet/docs/reference/Google.Cloud.BigQuery.V2/latest).


To authenticate to BigQuery, set up Application Default Credentials.
For more information, see

[Set up authentication for client libraries](https://docs.cloud.google.com/bigquery/docs/authentication.md.txt#client-libs).

```c#

using Google.Apis.Bigquery.v2.Data;
using Google.Cloud.BigQuery.V2;

public class BigQueryCreateDataset
{
    public BigQueryDataset CreateDataset(
        string projectId = "your-project-id",
        string location = "US"
    )
    {
        BigQueryClient client = BigQueryClient.Create(projectId);
        var dataset = new Dataset
        {
            // Specify the geographic location where the dataset should reside.
            Location = location
        };
        // Create the dataset
        return client.CreateDataset(
            datasetId: "your_new_dataset_id", dataset);
    }
}
```

### Go


Before trying this sample, follow the Go setup instructions in the
[BigQuery quickstart using
client libraries](https://docs.cloud.google.com/bigquery/docs/quickstarts/quickstart-client-libraries).


For more information, see the
[BigQuery Go API
reference documentation](https://godoc.org/cloud.google.com/go/bigquery).


To authenticate to BigQuery, set up Application Default Credentials.
For more information, see

[Set up authentication for client libraries](https://docs.cloud.google.com/bigquery/docs/authentication.md.txt#client-libs).

```go
import (
	"context"
	"fmt"

	"cloud.google.com/go/bigquery"
)

// createDataset demonstrates creation of a new dataset using an explicit destination location.
func createDataset(projectID, datasetID string) error {
	// projectID := "my-project-id"
	// datasetID := "mydataset"
	ctx := context.Background()

	client, err := bigquery.NewClient(ctx, projectID)
	if err != nil {
		return fmt.Errorf("bigquery.NewClient: %w", err)
	}
	defer client.Close()

	meta := &bigquery.DatasetMetadata{
		Location: "US", // See https://cloud.google.com/bigquery/docs/locations
	}
	if err := client.Dataset(datasetID).Create(ctx, meta); err != nil {
		return err
	}
	return nil
}
```

### Java


Before trying this sample, follow the Java setup instructions in the
[BigQuery quickstart using
client libraries](https://docs.cloud.google.com/bigquery/docs/quickstarts/quickstart-client-libraries).


For more information, see the
[BigQuery Java API
reference documentation](https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/overview).


To authenticate to BigQuery, set up Application Default Credentials.
For more information, see

[Set up authentication for client libraries](https://docs.cloud.google.com/bigquery/docs/authentication.md.txt#client-libs).

```java
import com.google.cloud.bigquery.BigQuery;
import com.google.cloud.bigquery.BigQueryException;
import com.google.cloud.bigquery.BigQueryOptions;
import com.google.cloud.bigquery.Dataset;
import com.google.cloud.bigquery.DatasetInfo;

public class CreateDataset {

  public static void main(String[] args) {
    // TODO(developer): Replace these variables before running the sample.
    String datasetName = "MY_DATASET_NAME";
    createDataset(datasetName);
  }

  public static void createDataset(String datasetName) {
    try {
      // Initialize client that will be used to send requests. This client only needs to be created
      // once, and can be reused for multiple requests.
      BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();

      String location = "US";

      DatasetInfo datasetInfo = DatasetInfo.newBuilder(datasetName).setLocation(location).build();

      Dataset newDataset = bigquery.create(datasetInfo);
      String newDatasetName = newDataset.getDatasetId().getDataset();
      System.out.println(newDatasetName + " created successfully");
    } catch (BigQueryException e) {
      System.out.println("Dataset was not created. \n" + e.toString());
    }
  }
}
```

### PHP


Before trying this sample, follow the PHP setup instructions in the
[BigQuery quickstart using
client libraries](https://docs.cloud.google.com/bigquery/docs/quickstarts/quickstart-client-libraries).


For more information, see the
[BigQuery PHP API
reference documentation](https://docs.cloud.google.com/php/docs/reference/cloud-bigquery/latest/BigQueryClient).


To authenticate to BigQuery, set up Application Default Credentials.
For more information, see

[Set up authentication for client libraries](https://docs.cloud.google.com/bigquery/docs/authentication.md.txt#client-libs).

```php
use Google\Cloud\BigQuery\BigQueryClient;

/**
 * Creates a dataset with the given dataset ID.
 *
 * @param string $projectId The project Id of your Google Cloud Project.
 * @param string $datasetId The BigQuery dataset ID.
 */
function create_dataset(string $projectId, string $datasetId): void
{
    $bigQuery = new BigQueryClient([
      'projectId' => $projectId,
    ]);
    $dataset = $bigQuery->createDataset($datasetId);
    printf('Created dataset %s' . PHP_EOL, $datasetId);
}
```

### Python


Before trying this sample, follow the Python setup instructions in the
[BigQuery quickstart using
client libraries](https://docs.cloud.google.com/bigquery/docs/quickstarts/quickstart-client-libraries).


For more information, see the
[BigQuery Python API
reference documentation](https://docs.cloud.google.com/python/docs/reference/bigquery/latest).


To authenticate to BigQuery, set up Application Default Credentials.
For more information, see

[Set up authentication for client libraries](https://docs.cloud.google.com/bigquery/docs/authentication.md.txt#client-libs).

```python
from google.cloud import bigquery

# Construct a BigQuery client object.
client = bigquery.Client()

# TODO(developer): Set dataset_id to the ID of the dataset to create.
# dataset_id = "{}.your_dataset".format(client.project)

# Construct a full Dataset object to send to the API.
dataset = bigquery.Dataset(dataset_id)

# TODO(developer): Specify the geographic location where the dataset should reside.
dataset.location = "US"

# Send the dataset to the API for creation, with an explicit timeout.
# Raises google.api_core.exceptions.Conflict if the Dataset already
# exists within the project.
dataset = client.create_dataset(dataset, timeout=30)  # Make an API request.
print("Created dataset {}.{}".format(client.project, dataset.dataset_id))
```

### Ruby


Before trying this sample, follow the Ruby setup instructions in the
[BigQuery quickstart using
client libraries](https://docs.cloud.google.com/bigquery/docs/quickstarts/quickstart-client-libraries).


For more information, see the
[BigQuery Ruby API
reference documentation](https://googleapis.dev/ruby/google-cloud-bigquery/latest/Google/Cloud/Bigquery.html).


To authenticate to BigQuery, set up Application Default Credentials.
For more information, see

[Set up authentication for client libraries](https://docs.cloud.google.com/bigquery/docs/authentication.md.txt#client-libs).

```ruby
require "google/cloud/bigquery"

def create_dataset dataset_id = "my_dataset", location = "US"
  bigquery = Google::Cloud::Bigquery.new

  # Create the dataset in a specified geographic location
  bigquery.create_dataset dataset_id, location: location

  puts "Created dataset: #{dataset_id}"
end
```

### Terraform


To learn how to apply or remove a Terraform configuration, see
[Basic Terraform commands](https://docs.cloud.google.com/docs/terraform/basic-commands.md.txt).


For more information, see the
[Terraform provider reference documentation](https://registry.terraform.io/providers/hashicorp/google/latest/docs).

```terraform
resource "google_bigquery_dataset" "default" {
  dataset_id                      = "mydataset"
  default_partition_expiration_ms = 2592000000  # 30 days
  default_table_expiration_ms     = 31536000000 # 365 days
  description                     = "dataset description"
  location                        = "US"
  max_time_travel_hours           = 96 # 4 days

  labels = {
    billing_group = "accounting",
    pii           = "sensitive"
  }
}
```

## What's next


To search and filter code samples for other Google Cloud products, see the
[Google Cloud sample browser](https://docs.cloud.google.com/docs/samples.md.txt?product=bigquery).