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Revising Aggregations - The Count Function Query a count of the number of cities in CITY having a Population larger than 100,000. Input Format SELECT COUNT(*) FROM CITY WHERE POPULATION > 100000; Revising Aggregations - The Sum Function Query the total population of all cities in CITY where District is California. Input Format SELECT SUM(POPULATION) FROM CITY WHERE DISTRICT = 'California'; Revis..

New Companies Amber's conglomerate corporation just acquired some new companies. Each of the companies follows this hierarchy: Given the table schemas below, write a query to print the company_code, founder name, total number of lead managers, total number of senior managers, total number of managers, and total number of employees. Order your output by ascending company_code. Note: The tables ma..

Binary Tree Nodes You are given a table, BST, containing two columns: N and P, where N represents the value of a node in Binary Tree, and P is the parent of N. Write a query to find the node type of Binary Tree ordered by the value of the node. Output one of the following for each node: Root: If node is root node. Leaf: If node is leaf node. Inner: If node is neither root nor leaf node. Sample I..

Pivot the Occupation column in OCCUPATIONS so that each Name is sorted alphabetically and displayed underneath its corresponding Occupation. The output column headers should be Doctor, Professor, Singer, and Actor, respectively. Note: Print NULL when there are no more names corresponding to an occupation. Input Format The OCCUPATIONS table is described as follows: Occupation will only contain on..