Implement a Default Partition for Unmatched Sales Data

Setting a Default Partition

Write a PostgreSQL query to create a default partition for unexpected sales data.

Solution:

-- Create a default partition to store unmatched values for the Sales table.
CREATE TABLE Sales_Default PARTITION OF Sales DEFAULT;

Explanation:

• Purpose of the Query:
• Catches records that don’t match any existing partitions.
• Key Components:
• DEFAULT: Acts as a catch-all partition.
• Real-World Application:
• Prevents errors when new data doesn't fit any defined partitions

Notes:

• Helps maintain data integrity by storing unexpected values separately.

For more Practice: Solve these Related Problems:

• Write a PostgreSQL query to create a default partition for a range-partitioned table that catches out-of-range dates.
• Write a PostgreSQL query to create a default partition for a list-partitioned table to handle undefined categories.
• Write a PostgreSQL query to create a default partition that includes a trigger for logging unexpected values.
• Write a PostgreSQL query to create a default partition and later modify its storage parameters dynamically.

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Previous PostgreSQL Exercise: Selecting Data from a Specific Partition.