Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Tables:
department, dept_emp, dept_manager, employees, salaries, titles
department (columns): dept_no, dept_name
dept_emp (columns): emp_no, dept_no, from_date, to_date
dept_manager (columns): emp_no, dept_no, from_date, to_date
employees (columns): emp_no, birth_date, first_name, Last_name, gender, hire_date
salaries (columns): emp_no, salary, from_date, to_date
titles (columns): emp_no, title, from_date, to_date
a) Your task is to write a SQL query to find count of employee who does not
have a manager in the above given table schema?
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Transcribed Image Text:Tables: department, dept_emp, dept_manager, employees, salaries, titles department (columns): dept_no, dept_name dept_emp (columns): emp_no, dept_no, from_date, to_date dept_manager (columns): emp_no, dept_no, from_date, to_date employees (columns): emp_no, birth_date, first_name, Last_name, gender, hire_date salaries (columns): emp_no, salary, from_date, to_date titles (columns): emp_no, title, from_date, to_date a) Your task is to write a SQL query to find count of employee who does not have a manager in the above given table schema?
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