gcloud alpha bq tables update

gcloud alpha bq tables update - update a new BigQuery table

gcloud alpha bq tables update (TABLE : --dataset=DATASET) [--description=DESCRIPTION] [--expiration=EXPIRATION] [--relax-columns=[FIELD_NAME,…]] [--add-columns=[FIELD_NAME=FIELD_TYPE,…]     | --add-columns-file=PATH_TO_FILE] [GCLOUD_WIDE_FLAG …]

gcloud alpha bq tables update /projects/myproject/datasets/my-dataset/tables/my-table --description 'My New Table'

The following command changes the schema mode from REQUIRED to NULLABLE on the value and tags columns in a table with ID my-other-table in dataset my-other-dataset:

gcloud alpha bq tables update my-other-table --dataset my-other-dataset --relax-columns name,tags

Table resource - The BigQuery table you want to update. The arguments in this group can be used to specify the attributes of this resource. (NOTE) Some attributes are not given arguments in this group but can be set in other ways.

To set the project attribute:

• provide the argument table on the command line with a fully specified name;
• provide the argument --project on the command line;
• set the property core/project.

This must be specified.

TABLE

ID of the table or fully qualified identifier for the table.

To set the table attribute:

• provide the argument table on the command line.

This positional argument must be specified if any of the other arguments in this group are specified.

--dataset=DATASET

The id of the BigQuery dataset.

To set the dataset attribute:

• provide the argument table on the command line with a fully specified name;
• provide the argument --dataset on the command line.

--description=DESCRIPTION

Description of the table.

--expiration=EXPIRATION

How long after creation should this table or view expire e.g. 1d, 2w etc.

See $ gcloud topic datetimes for information on duration formats

--relax-columns=[FIELD_NAME,…]

A comma-separated list of field names in the current schema that should have their mode changed from REQUIRED to NULLABLE.

For more details on updating and managing BigQuery schemas see: https://cloud.google.com/bigquery/docs/managing-table-schemas

Specify changes to the table schema.

At most one of these can be specified:

--add-columns=[FIELD_NAME=FIELD_TYPE,…]

A comma-separated list of entries of the form FIELD_NAME[=FIELD_TYPE] specifying field names and types for the columns being added to the table. FIELD_TYPE defaults to string if not present. Possible FIELD_TYPES are string, integer, float, boolean, record, and timestamp.

For more details on BigQuery schemas see: https://cloud.google.com/bigquery/docs/schemas.

--add-columns-file=PATH_TO_FILE

The name of a JSON file containing a single object containing an array each element of which is an object with properties name, type, and, optionally a mode (one of: NULLABLE or REPEATED), specifying the columns to be added to the table. If mode is omitted the default is 'NULLABLE'.

For example: { 'schema': [ { 'name': 'field1', 'type': 'string', 'mode': 'REQUIRED' }, { 'name': 'field2', 'type': 'integer', 'mode': 'REPEATED' }, [ { 'name': 'fieldN', 'type': TYPE, ['mode': MODE] } … ] ] }

For more details on BigQuery schemas see: https://cloud.google.com/bigquery/docs/schemas.

Use a full or relative path to a local file containing the value of add_columns_file.

Run $ gcloud help for details.