Create an external table

Create an external AWS table.

Code sample

Java

Before trying this sample, follow the Java setup instructions in the BigQuery Quickstart Using Client Libraries. For more information, see the BigQuery Java API reference documentation. 

import com.google.cloud.bigquery.BigQuery;
import com.google.cloud.bigquery.BigQueryException;
import com.google.cloud.bigquery.BigQueryOptions;
import com.google.cloud.bigquery.CsvOptions;
import com.google.cloud.bigquery.ExternalTableDefinition;
import com.google.cloud.bigquery.Field;
import com.google.cloud.bigquery.Schema;
import com.google.cloud.bigquery.StandardSQLTypeName;
import com.google.cloud.bigquery.TableId;
import com.google.cloud.bigquery.TableInfo;

// Sample to create an external aws table
public class CreateExternalTableAws {

  public static void main(String[] args) {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "MY_PROJECT_ID";
    String datasetName = "MY_DATASET_NAME";
    String tableName = "MY_TABLE_NAME";
    String connectionId = "MY_CONNECTION_ID";
    String sourceUri = "s3://your-bucket-name/";
    CsvOptions options = CsvOptions.newBuilder().setSkipLeadingRows(1).build();
    Schema schema =
        Schema.of(
            Field.of("name", StandardSQLTypeName.STRING),
            Field.of("post_abbr", StandardSQLTypeName.STRING));
    ExternalTableDefinition externalTableDefinition =
        ExternalTableDefinition.newBuilder(sourceUri, options)
            .setConnectionId(connectionId)
            .setSchema(schema)
            .build();
    createExternalTableAws(projectId, datasetName, tableName, externalTableDefinition);
  }

  public static void createExternalTableAws(
      String projectId,
      String datasetName,
      String tableName,
      ExternalTableDefinition externalTableDefinition) {
    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();

      TableId tableId = TableId.of(projectId, datasetName, tableName);
      TableInfo tableInfo = TableInfo.newBuilder(tableId, externalTableDefinition).build();

      bigquery.create(tableInfo);
      System.out.println("Aws external table created successfully");

      // Clean up
      bigquery.delete(TableId.of(projectId, datasetName, tableName));
    } catch (BigQueryException e) {
      System.out.println("Aws external was not created." + e.toString());
    }
  }
}