Understanding & using Time Travel
Snowflake Time Travel enables accessing historical data (that is, data that has been changed or deleted) at any point within a defined period. It serves as a powerful tool for performing the following tasks: Restoring objects that might…
Snowflake Time Travel & Fail-safe
Snowflake provides powerful CDP features for ensuring the maintenance and availability of your historical data (i.e. data that has been changed or deleted): Querying, cloning, and restoring historical data in tables, schemas, and databases…
Storage costs for Time Travel and Fail-safe
Transient tables can have a Time Travel retention period of either 0 or 1 day. Temporary tables can also have a Time Travel retention period of 0 or 1 day; however, this retention period ends as soon as the table is dropped or the session…
Continuous Data Protection
Maintenance of historical data (i.e. data that has been changed or deleted) through Snowflake Time Travel (for querying and restoring data) and Fail - safe (for disaster recovery; can only be performed by Snowflake).
How time travel works on a view with one or more tables
The Snowflake engine pushes down the time travel clause to the underlying table level, allowing users to access historical data within the specified retention period. When a view involves multiple tables, the 'at' condition is pushed to…
Is there posibility to have CDC Data before a Stream creation using Time Travel
Time Travel in Snowflake allows you to access historical data within a table for a defined period (which can be up to 90 days, depending on your Snowflake edition). It enables you to query data as it was at a specific point in the past.
Using Time Travel to validate correctness of a query or a recent DML operation
ISSUE: At times users can misinterpret the "effect" of a recent DML operation. For example, for a table that undergoes multiple DMLs from various workloads, users, or sources.
Data storage considerations
This topic provides guidelines and best practices for controlling data storage costs associated with Continuous Data Protection (CDP), particularly for tables. CDP, which includes Time Travel and Fail - safe, is a standard set of features…
How to query time travel with a time other than the default (UTC)
ISSUE: The time travel feature supports querying data with an AT <timestamp> clause. By default, the timestamp specified in the AT clause is considered as a timestamp with UTC timezone (equivalent to TIMESTAMP_NTZ).
Understanding storage cost
Snowflake automatically compresses all data stored in tables and uses the compressed file size to calculate the total storage used for an account. See also Data storage considerations. Time Travel and Fail - safe costs Time Travel and…
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