Accidentally deleted Bigquery data — data recovery
BigQuery matins a 7-day history and allows you to query a point-in-time snapshot of your data by using either table decorators or SYSTEM_TIME AS OF in the FROM clause. You can easily revert changes without having to request recovery from backups
To revert a change you can either use standard SQL or bq command-line tools.
bq cp project:dataset.table@-36000 project:dataset.table
This command will replace the table with data from the same table 1 hour ago.