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Which Snowflake table type persists until it is explicitly dropped. is available for all users with relevant privileges (across sessions). and has no Fail-safe period?
The type of Snowflake table that persists until it is explicitly dropped, is available for all users with relevant privileges across sessions, and does not have a Fail-safe period, is a Transient table. Transient tables are designed to provide temporary storage similar to permanent tables but with some reduced storage costs and without the Fail-safe feature, which provides additional data protection for a period beyond the retention time. Transient tables are useful in scenarios where data needs to be temporarily stored for longer than a session but does not require the robust durability guarantees of permanent tables.
A user needs to MINIMIZE the cost of large tables that are used to store transitory dat
a. The data does not need to be protected against failures, because the data can be reconstructed outside of Snowflake.
What table type should be used?
For minimizing the cost of large tables that are used to store transitory data, which does not need to be protected against failures because it can be reconstructed outside of Snowflake, the best table type to use is Transient. Transient tables in Snowflake are designed for temporary or transitory data storage and offer reduced storage costs compared to permanent tables. However, unlike temporary tables, they persist across sessions until explicitly dropped.
Why Transient Tables: Transient tables provide a cost-effective solution for storing data that is temporary but needs to be available longer than a single session. They have lower data storage costs because Snowflake does not maintain historical data (Time Travel) for as long as it does for permanent tables.
Creating a Transient Table:
To create a transient table, use the TRANSIENT keyword in the CREATE TABLE statement:
CREATE TRANSIENT TABLE my_transient_table (...);
Use Case Considerations: Transient tables are ideal for scenarios where the data is not critical, can be easily recreated, and where cost optimization is a priority. They are suitable for development, testing, or staging environments where data longevity is not a concern.
Which table function should be used to view details on a Directed Acyclic Graphic (DAG) run that is presently scheduled or is executing?
The CURRENT_TASK_GRAPHS table function is designed to provide information on Directed Acyclic Graphs (DAGs) that are currently scheduled or executing within Snowflake. This function offers insights into the structure and status of task chains, enabling users to monitor and troubleshoot task executions. DAGs in Snowflake represent sequences of tasks with dependencies, and understanding their current state is crucial for managing complex workflows. Reference: Snowflake Documentation on Task Management
Which command can be used to stage local files from which Snowflake interface?
SnowSQL is the command-line client for Snowflake that allows users to execute SQL queries and perform all DDL and DML operations, including staging files for bulk data loading. It is specifically designed for scripting and automating tasks.
SnowPro Core Certification Exam Study Guide
Snowflake Documentation on SnowSQL
