CIS 423- Assignment 3- JLBaptiste

8/14/2019 CIS 423- Assignment 3- JLBaptiste

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Files Included

• assignment3_create_tables_with_keys_and_constraints.sql - this creates thetables, checks if they exist, inserts foreign keys, primary keys, and table structure.• assignment3_insert_content.sql - this only inserts the content into the tables.

• assumptions_and_sqlqueries.pdf- this document. it includes a list of files included,assumptions, and the answers to the queries to be crafted.

Assumptions

• MySQL used as the database of choice. No specific database was specified to beused, and my Windows 7 install is completely corrupted. Only difference is foreign keysbeing called keys. You can see this in the .SQL files• Actual .SQL files included, not text.• Combined some operations into one - ie- creating primary keys happened with theactual table creation.

1. Question 1

SELECT *FROM EmployeeWHERE Last LIKE '%S' and last LIKE 'A%';

Result: No rows selected.

To get Franklin Wong, do the following

SELECT *FROM EmployeeWHERE Last LIKE '%G' and last LIKE 'W%';

Jason L. Baptiste! November 8, 2009

CIS 423! Professor Kadiyala



2. Question 2

DELETEFROM EmployeeWHERE Birthday < 1959-11-08 ;

Result: 1 birthday deleted.





3. Question 3

UPDATE EmployeeSET `Salary` = `Salary`*1.10 ;

Result: Salaries updated 10%

4. Question 4

SELECT first,middle,lastFROM EmployeeWHERE Birthday LIKE ʻ%-11-08ʼ ;

Result: None selected, but if the birthday were a month from today it would be:





5. Question 5

SELECT count(SSN) AS ʻManaged By Franklin Wongʼ

FROM EmployeeWHERE SuperSSN = 333445555;

Result: 2





8. Question 8

SELECT COUNT(SSN) as 'Employees Per Department',DNumberFROM EmployeeGROUP By DNumber;





9. Question 9

SELECT AVG(Salary) as 'Average Salary'FROM EmployeeWHERE Sex = 'M';





SELECT AVG(Salary) as 'Average Salary'

FROM EmployeeWHERE Sex = 'F';





10. Question 10

SELECT COUNT(Sex) as 'Number of Men',DNumberFROM EmployeeWHERE Sex = 'M'GROUP BY DNumber;





SELECT COUNT(Sex) as 'Number of Women',DNumber

FROM EmployeeWHERE Sex = 'F'GROUP BY DNumber;





11.Question 11

SELECT AVG(Salary) as 'Average Salary',DNumberFROM EmployeeGROUP BY DNumber;



CIS 423- Assignment 3- JLBaptiste

Documents

Transcript of CIS 423- Assignment 3- JLBaptiste