1. Find total number(Employees) of Accountant (Job Title)-> HR schema (Employees and Jobs): 6 2. Find all the employees who has a 's' in their name and who started their job after Jun 17th 2003. HR schema: 3 3. Show all the employees who get more than average salary. → HR schema:3

1. Find total number(Employees) of Accountant (Job Title)-> HR schema (Employees and Jobs): 6 2. Find all the employees who has a 's' in their name and who started their job after Jun 17th 2003. HR schema: 3 3. Show all the employees who get more than average salary. → HR schema:3

A Guide to SQL

9th Edition

ISBN:9781111527273

Author:Philip J. Pratt

Publisher:Philip J. Pratt

Chapter6: Updating Data

Section: Chapter Questions

Problem 4SCG

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Concept explainers

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.

Question

1. Find total number(Employees) of Accountant (Job Title)-> HR schema (Employees and Jobs): 6

2. Find all the employees who has a 's' in their name and who started their job after Jun 17th 2003. HR schema: 3

3. Show all the employees who get more than average salary. → HR schema:3

4. Show how many employees working on each department where salary is more than 6000. HR schema: 5

5. .Find all the orders made on 16th Sep 2018. > CO schema (bonus):3

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