Updating a view america christian dating site
For more information on Cloud IAM roles and permissions in Big Query, see Access control. The view's query will be updated to contain only states with # names starting with ' M'. Client() # table_ref = client.dataset('my_dataset').table('my_table') # table = client.get_table(table_ref) # API request assert table.expires is None # set table to expire 5 days from now expiration = datetime.datetime.now(pytz.utc) datetime.timedelta(days=5) table.expires = expiration table = client.update_table(table, ["expires"]) # API request # expiration is stored in milliseconds margin = datetime.timedelta(microseconds=1000) assert expiration - margin // To run this sample, you will need to create (or reuse) a context and // an instance of the bigquery client.
You can update the SQL query used to define a view by: You can change the SQL dialect from legacy SQL to standard SQL in the CLI or API. view_ref = shared_dataset_ref.table("my_shared_view") view = bigquery. Table(view_ref) sql_template = ' SELECT name, post_abbr FROM `..` WHERE name LIKE "M%"' view.view_query = sql_template.format(project, source_dataset_id, source_table_id) view = client.update_table(view, ["view_query"]) # API request You can set a default table expiration time at the dataset level (which affects both tables and views), or you can set a view's expiration time when the view is created. For example: // import "cloud.google.com/go/bigquery" // ctx := context. New Client(ctx, "your-project-id") table Ref := client.
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Views can provide a different representation (such as subsets or supersets) of the data that resides within other tables and views.
Views are very powerful because they allow you to tailor the presentation of data to different types of users.
Note: It is not necessary that the key or keys of a table be selected for it to be key preserved.
It is sufficient that if the key or keys were selected, then they would also be keys of the result of the join.