Separate Orders_East Partition as a Standalone Table
Detaching a Partition from a Partitioned Table
Write a PostgreSQL query to detach Orders_East partition from the Orders table.
Solution:
-- Detach the partition named Orders_East from the Orders table without deleting the partition table
ALTER TABLE Orders DETACH PARTITION Orders_East;
Explanation:
- Purpose of the Query:
- Converts a partition back into a standalone table.
- Key Components:
- DETACH PARTITION: Removes a partition from the parent without deleting data.
- Real-World Application:
- Useful for migrating partitions to separate storage before deletion.
Notes:
- The detached partition still contains its data.
For more Practice: Solve these Related Problems:
- Write a PostgreSQL query to detach a partition and simultaneously rename it to indicate its detached status.
- Write a PostgreSQL query to detach a partition and convert it into a temporary table for data review.
- Write a PostgreSQL query to detach a partition only if the partition meets certain data volume criteria.
- Write a PostgreSQL query to detach a partition and then reattach it under a different partitioning strategy.
Have another way to solve this solution? Contribute your code (and comments) through Disqus.
Previous PostgreSQL Exercise: Attaching an Existing Table as a Partition.
Next PostgreSQL Exercise: Renaming a Partition in a Partitioned Table.What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
- Weekly Trends and Language Statistics
- Weekly Trends and Language Statistics