Extract Sales Data Exclusively from the 2024 Partition

Selecting Data from a Specific Partition

Write a PostgreSQL query to retrieve all sales data from the Sales_2024 partition.

Solution:

-- Query the Sales_2024 partition to retrieve all rows
SELECT * FROM Sales_2024;

Explanation:

• Purpose of the Query:
• Fetches data only from a specified partition.
• Real-World Application:
• Useful for analyzing data specific to a particular period.

Notes:

• Partition-level queries can improve performance compared to querying the parent table.

For more Practice: Solve these Related Problems:

• Write a PostgreSQL query to select data from a specific partition and apply additional filtering conditions.
• Write a PostgreSQL query to join data from a specific partition with another table using a partition key.
• Write a PostgreSQL query to retrieve aggregated results from a specific partition using GROUP BY.
• Write a PostgreSQL query to select a limited number of rows from a specific partition for performance testing.

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Previous PostgreSQL Exercise: Inserting Data into a Partitioned Table.