Function updateWithTimestamp

spanner/timestamp.js:233–297

(instanceId, databaseId, projectId)

}

async function updateWithTimestamp(instanceId, databaseId, projectId) {
  // [START spanner_update_data_with_timestamp_column]
  // [START_EXCLUDE]
  // This sample uses the `MarketingBudget` column. You can add the column
  // by running the `schema.js addColumn` sample or by running this DDL statement against
  // your database:
  //    ALTER TABLE Albums ADD COLUMN MarketingBudget INT64
  //
  // In addition this update expects the `LastUpdateTime` column
  // added by running the `timestamp.js addTimestampColumn` sample
  // or applying the DDL statement:
  //    ALTER TABLE Albums ADD COLUMN
  //    LastUpdateTime TIMESTAMP OPTIONS (allow_commit_timestamp=true)
  // [END_EXCLUDE]

  // 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,
  });
  let database;
  try {
    // Gets a reference to a Cloud Spanner instance and database
    const instance = spanner.instance(instanceId);
    database = instance.database(databaseId);

    // Update a row in the Albums table
    // Note: Cloud Spanner interprets Node.js numbers as FLOAT64s, so they
    // must be converted to strings before being inserted as INT64s
    const albumsTable = database.table('Albums');

    const data = [
      {
        SingerId: '1',
        AlbumId: '1',
        MarketingBudget: '1000000',
        LastUpdateTime: 'spanner.commit_timestamp()',
      },
      {
        SingerId: '2',
        AlbumId: '2',
        MarketingBudget: '750000',
        LastUpdateTime: 'spanner.commit_timestamp()',
      },
    ];

    await albumsTable.update(data);
    console.log('Updated data.');
  } catch (err) {