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What is the SQL command to list the total sales by month and product category, with subtotals by month and a grand total for all sales? Figure P13.8 shows the result of the query.

What is the SQL command to list the total sales by month and product category, with subtotals by month and a grand total for all sales? Figure P13.8 shows the result of the query.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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What is the SQL command to list the total sales by month and product category, with subtotals by month and a grand total for all sales? Figure P13.8 shows the result of the query.

The table below presents sales data categorized by month and product category. Each row corresponds to a specific combination of month and product category, indicating the total sales for that category and month. There are five categories of data: - **Months (TM_MONTH):** The data spans two months, represented numerically (9 for September and 10 for October). - **Product Categories (P_CATEGORY):** Products are grouped into four categories (CAT1, CAT2, CAT3, CAT4), with additional rows for unspecified categories denoted as "NULL." - **Total Sales (TOTSALES):** This column represents the total sales amount for each category and month. ### Table Data: - **September (Month 9):** - CAT1: $174.83 - CAT2: $446.81 - CAT3: $537.54 - CAT4: $80.67 - NULL: $1239.85 - **October (Month 10):** - CAT1: $124.89 - CAT2: $366.91 - CAT3: $459.64 - CAT4: $60.77 - NULL: $1012.21 - **Overall (No Specific Month):** - Total Sales for NULL: $2252.06 ### Summary: The table illustrates that sales data varies by category and month, indicating trends and areas of interest for further analysis. The "NULL" category, which aggregates unspecified or unclassified sales data, shows significant total sales, highlighting its importance for comprehensive sales analysis.
Transcribed Image Text:The table below presents sales data categorized by month and product category. Each row corresponds to a specific combination of month and product category, indicating the total sales for that category and month. There are five categories of data: - **Months (TM_MONTH):** The data spans two months, represented numerically (9 for September and 10 for October). - **Product Categories (P_CATEGORY):** Products are grouped into four categories (CAT1, CAT2, CAT3, CAT4), with additional rows for unspecified categories denoted as "NULL." - **Total Sales (TOTSALES):** This column represents the total sales amount for each category and month. ### Table Data: - **September (Month 9):** - CAT1: $174.83 - CAT2: $446.81 - CAT3: $537.54 - CAT4: $80.67 - NULL: $1239.85 - **October (Month 10):** - CAT1: $124.89 - CAT2: $366.91 - CAT3: $459.64 - CAT4: $60.77 - NULL: $1012.21 - **Overall (No Specific Month):** - Total Sales for NULL: $2252.06 ### Summary: The table illustrates that sales data varies by category and month, indicating trends and areas of interest for further analysis. The "NULL" category, which aggregates unspecified or unclassified sales data, shows significant total sales, highlighting its importance for comprehensive sales analysis.
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