SQL List the item ID, description, and category for each pair of items that are in the same category. (For example, one such pair would be item FS42 and item PF19, because the category for both items is FSH.) Order the output by category. My instructor gave this hint, but I cannot figure out what to write within the HAVING clause: SELECT CATEGORY, ITEM_ID, DESCRIPTION FROM ITEM WHERE EXISTS (SELECT COUNT(*) FROM ITEM I WHERE I._____________ = ITEM._______________ GROUP BY CATEGORY HAVING ___________________) ORDER BY ________________;
SQL List the item ID, description, and category for each pair of items that are in the same category. (For example, one such pair would be item FS42 and item PF19, because the category for both items is FSH.) Order the output by category. My instructor gave this hint, but I cannot figure out what to write within the HAVING clause: SELECT CATEGORY, ITEM_ID, DESCRIPTION FROM ITEM WHERE EXISTS (SELECT COUNT(*) FROM ITEM I WHERE I._____________ = ITEM._______________ GROUP BY CATEGORY HAVING ___________________) ORDER BY ________________;
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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SQL
List the item ID, description, and category for each pair of items that are in the same category. (For example, one such pair would be item FS42 and item PF19, because the category for both items is FSH.) Order the output by category.
My instructor gave this hint, but I cannot figure out what to write within the HAVING clause:
SELECT CATEGORY, ITEM_ID, DESCRIPTION
FROM ITEM
WHERE EXISTS (SELECT COUNT(*) FROM ITEM I
WHERE I._____________ = ITEM._______________
GROUP BY CATEGORY
HAVING ___________________)
ORDER BY ________________;
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