Query disables the use of the cache.

## Explore further


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

- [Use cached query results](https://docs.cloud.google.com/bigquery/docs/cached-results)

## Code sample

### 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#client-libs).

    import (
    	"context"
    	"fmt"
    	"io"

    	"cloud.google.com/go/bigquery"
    	"google.golang.org/api/iterator"
    )

    // queryDisableCache demonstrates issuing a query and requesting that the query cache is bypassed.
    func queryDisableCache(w io.Writer, projectID string) error {
    	// projectID := "my-project-id"
    	ctx := context.Background()
    	client, err := bigquery.NewClient(ctx, projectID)
    	if err != nil {
    		return fmt.Errorf("bigquery.NewClient: %w", err)
    	}
    	defer client.Close()

    	q := client.Query(
    		"SELECT corpus FROM `bigquery-public-data.samples.shakespeare` GROUP BY corpus;")
    	q.DisableQueryCache = true
    	// Location must match that of the dataset(s) referenced in the query.
    	q.https://docs.cloud.google.com/go/docs/reference/cloud.google.com/go/bigquery/latest/index.html#cloud_google_com_go_bigquery_Job_Location = "US"

    	// Run the query and process the returned row iterator.
    	it, err := q.Read(ctx)
    	if err != nil {
    		return fmt.Errorf("query.Read(): %w", err)
    	}
    	for {
    		var row []bigquery.https://docs.cloud.google.com/go/docs/reference/cloud.google.com/go/bigquery/latest/index.html#cloud_google_com_go_bigquery_Value
    		err := it.Next(&row)
    		if err == iterator.Done {
    			break
    		}
    		if err != nil {
    			return err
    		}
    		fmt.Fprintln(w, row)
    	}
    	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#client-libs).

    import com.google.cloud.bigquery.https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/com.google.cloud.bigquery.BigQuery.html;
    import com.google.cloud.bigquery.https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/com.google.cloud.bigquery.BigQueryException.html;
    import com.google.cloud.bigquery.https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/com.google.cloud.bigquery.BigQueryOptions.html;
    import com.google.cloud.bigquery.https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/com.google.cloud.bigquery.QueryJobConfiguration.html;
    import com.google.cloud.bigquery.https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/com.google.cloud.bigquery.TableResult.html;

    // Sample to running a query with the cache disabled.
    public class QueryDisableCache {

      public static void main(String[] args) {
        String query = "SELECT corpus FROM `bigquery-public-data.samples.shakespeare` GROUP BY corpus;";
        queryDisableCache(query);
      }

      public static void queryDisableCache(String query) {
        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.
          https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/com.google.cloud.bigquery.BigQuery.html bigquery = https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/com.google.cloud.bigquery.BigQueryOptions.html.getDefaultInstance().getService();

          https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/com.google.cloud.bigquery.QueryJobConfiguration.html queryConfig =
              https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/com.google.cloud.bigquery.QueryJobConfiguration.html.newBuilder(query)
                  // Disable the query cache to force live query evaluation.
                  .setUseQueryCache(false)
                  .build();

          https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/com.google.cloud.bigquery.TableResult.html results = bigquery.https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/com.google.cloud.bigquery.BigQuery.html#com_google_cloud_bigquery_BigQuery_query_com_google_cloud_bigquery_QueryJobConfiguration_com_google_cloud_bigquery_BigQuery_JobOption____(queryConfig);

          results
              .https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/com.google.cloud.bigquery.TableResult.html#com_google_cloud_bigquery_TableResult_iterateAll__()
              .forEach(row -> row.forEach(val -> System.out.printf("%s,", val.toString())));

          System.out.println("Query disable cache performed successfully.");
        } catch (https://docs.cloud.google.com/java/docs/reference/google-cloud-bigquery/latest/com.google.cloud.bigquery.BigQueryException.html | InterruptedException e) {
          System.out.println("Query not performed \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#client-libs).

    use Google\Cloud\BigQuery\BigQueryClient;

    /**
     * Query with query catch option enabled.
     *
     * @param string $projectId The project Id of your Google Cloud Project.
     * @param string $query Eg: 'SELECT id, view_count FROM
     *                          `bigquery-public-data.stackoverflow.posts_questions`';
     */
    function query_no_cache(string $projectId, string $query): void
    {
        // Construct a BigQuery client object.
        $bigQuery = new BigQueryClient([
          'projectId' => $projectId,
        ]);

        // Set job configs
        $jobConfig = $bigQuery->query($query);
        $jobConfig->useQueryCache(false);

        // Extract query results
        $queryResults = $bigQuery->runQuery($jobConfig);

        $i = 0;
        foreach ($queryResults as $row) {
            printf('--- Row %s ---' . PHP_EOL, ++$i);
            foreach ($row as $column => $value) {
                printf('%s: %s' . PHP_EOL, $column, json_encode($value));
            }
        }
        printf('Found %s row(s)' . PHP_EOL, $i);
    }

### 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#client-libs).

    from google.cloud import https://docs.cloud.google.com/python/docs/reference/bigquery/latest

    # Construct a BigQuery client object.
    client = https://docs.cloud.google.com/python/docs/reference/bigquery/latest.https://docs.cloud.google.com/python/docs/reference/bigquery/latest/google.cloud.bigquery.client.Client.html()

    job_config = https://docs.cloud.google.com/python/docs/reference/bigquery/latest.https://docs.cloud.google.com/python/docs/reference/bigquery/latest/google.cloud.bigquery.job.QueryJobConfig.html(use_query_cache=False)
    sql = """
        SELECT corpus
        FROM `bigquery-public-data.samples.shakespeare`
        GROUP BY corpus;
    """
    results = client.https://docs.cloud.google.com/python/docs/reference/bigquery/latest/google.cloud.bigquery.client.Client.html#google_cloud_bigquery_client_Client_query_and_wait(sql, job_config=job_config)  # Make an API request.

    for row in results:
        print(row)

### Rust

    use google_cloud_bigquery::client::BigQuery;

    pub async fn sample(project_id: &str) -> anyhow::Result<()> {
        let client = BigQuery::builder().build().await?;

        let mut rows = client
            .query(
                "SELECT \
            name FROM `bigquery-public-data.usa_names.usa_1910_2013` \
            WHERE state = 'TX' \
            LIMIT 100",
            )
            .with_project_id(project_id)
            .set_use_query_cache(false)
            .set_location("US")
            .until_done()
            .await?
            .read();

        while let Some(row) = rows.next().await.transpose()? {
            let name: String = row.get("name")?;
            println!("Name: {name}");
        }
        Ok(())
    }

## 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?product=bigquery).