Function queryDataWithParameter

spanner/dml.js:323–369

(instanceId, databaseId, projectId)

}

async function queryDataWithParameter(instanceId, databaseId, projectId) {
  // [START spanner_query_with_parameter]
  // Imports the Google Cloud client library
  const {Spanner} = require('@google-cloud/spanner');

  /**
   * TODO(developer): Uncomment the following lines before running the sample.
   */
  // const projectId = 'my-project-id';
  // const instanceId = 'my-instance';
  // const databaseId = 'my-database';

  // Creates a client
  const spanner = new Spanner({
    projectId: projectId,
  });

  // Gets a reference to a Cloud Spanner instance and database
  const instance = spanner.instance(instanceId);
  const database = instance.database(databaseId);

  const query = {
    sql: `SELECT SingerId, FirstName, LastName
          FROM Singers WHERE LastName = @lastName`,
    params: {
      lastName: 'Garcia',
    },
  };

  // Queries rows from the Albums table
  try {
    const [rows] = await database.run(query);

    rows.forEach(row => {
      const json = row.toJSON();
      console.log(
        `SingerId: ${json.SingerId}, FirstName: ${json.FirstName}, LastName: ${json.LastName}`
      );
    });
  } catch (err) {
    console.error('ERROR:', err);
  } finally {
    // Close the database when finished.
    await database.close();
  }
  // [END spanner_query_with_parameter]
}

async function writeWithTransactionUsingDml(instanceId, databaseId, projectId) {
  // [START spanner_dml_getting_started_update]