Podcast
Questions and Answers
What is the primary purpose of the CLONE command in the given context?
What is the primary purpose of the CLONE command in the given context?
- To delete the existing objects and recreate them
- To move the existing objects to a different location
- To modify the existing objects in the system
- To create zero-copy clones of databases, schemas, and tables (correct)
What does the CLONE command support for databases and schemas using the IGNORE TABLES WITH INSUFFICIENT DATA RETENTION parameter?
What does the CLONE command support for databases and schemas using the IGNORE TABLES WITH INSUFFICIENT DATA RETENTION parameter?
- Modifying the tables with insufficient data retention
- Deleting all tables with insufficient data retention
- Skipping tables that have been purged from Time Travel (correct)
- Creating additional copies of tables with insufficient data retention
How is the value specified for the exact date and time to use for Time Travel?
How is the value specified for the exact date and time to use for Time Travel?
- Set using a predefined variable
- Specified using a special keyword
- Explicitly cast to a TIMESTAMP (correct)
- Entered as a string
What does the parameter specifying the difference in seconds from the current time for Time Travel support?
What does the parameter specifying the difference in seconds from the current time for Time Travel support?
What is the requirement for the query ID of a statement to be used as the reference point for Time Travel?
What is the requirement for the query ID of a statement to be used as the reference point for Time Travel?
What privilege(s) does your current role need to have on the source object to create a clone?
What privilege(s) does your current role need to have on the source object to create a clone?
What happens if the time specified in the AT | BEFORE clause is beyond the data retention period for any child table in a database?
What happens if the time specified in the AT | BEFORE clause is beyond the data retention period for any child table in a database?
What happens to the load history of a cloned table in comparison to its source table?
What happens to the load history of a cloned table in comparison to its source table?
What happens to Automatic Clustering when a new table is created using CREATE TABLE … CLONE syntax?
What happens to Automatic Clustering when a new table is created using CREATE TABLE … CLONE syntax?
What must be done if a database role is already cloned to the target database when running the CREATE CLONE command?
What must be done if a database role is already cloned to the target database when running the CREATE CLONE command?
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Study Notes
CLONE Command
- Primary purpose of CLONE command is to create a copy of a database, schema, or table.
Clone Command with IGNORE TABLES WITH INSUFFICIENT DATA RETENTION
- Supports cloning of databases and schemas, excluding tables with insufficient data retention.
Time Travel
- Exact date and time for Time Travel is specified using the AT | BEFORE clause.
- Parameter specifying the difference in seconds from the current time for Time Travel is supported.
Query ID Requirement
- Query ID of a statement must be used as the reference point for Time Travel.
Privilege Requirement
- Current role needs to have the relevant privilege on the source object to create a clone.
Data Retention Period
- If the time specified in the AT | BEFORE clause is beyond the data retention period for any child table in a database, the command will not be executed.
Load History of Cloned Table
- Load history of a cloned table is not affected, and it will be the same as its source table.
Automatic Clustering
- When a new table is created using CREATE TABLE … CLONE syntax, Automatic Clustering is disabled.
Creating a Clone
- If a database role is already cloned to the target database when running the CREATE CLONE command, the command will not overwrite the existing clone; instead, the existing clone will be preserved.
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