The Fail-safe retention period for transient and temporary tables in Snowflake is 0 days. Fail-safe is a feature designed to protect data against accidental loss or deletion by retaining historical data for a period after its Time Travel retention period expires. However, transient and temporary tables, which are designed for temporary or short-term storage and operations, do not have a Fail-safe period. Once the data is deleted or the table is dropped, it cannot be recovered.
Reference:
Snowflake Documentation: Understanding Fail-safe

* The PARSE_JSON function converts a valid JSON string into a VARIANT type.
* Passing 'null' as the input will retrieve a valid SQL NULL value.
* Example:
SELECT PARSE_JSON('null');
This will return a valid SQL NULL.
References:
* Snowflake Documentation: PARSE_JSON Function

Object tagging in Snowflake allows users to assign metadata labels to various database objects to improve data governance and access control. Tags can be used to categorize and manage data based on business needs, helping to enforce governance policies and streamline database administration.
References:
* Snowflake Documentation: Object Tagging