Database Concepts Team Project.pptx

DATABASE CONCEPTS
TEAM PROJECT
Liz Thomas, Leon Tang, Latrell Trotter, Haley
Nixon,

There are six entities
VENDOR, DEPARTMENT,
SKILL, PROJECT,
EMPLOYEE, and
LOCATION with one
associative entity EMP
SKILL in this Project, Inc.
system.
ER Diagram

• EMPLOYEE
• 1NF
• 2NF
• 3NF
• Transitive
• Spouse emp# and marriage moved to a
separate table

• EMPLOYEE(EMP_SSN, FIRST_NAME,
LAST_NAME, SALARY, SEX, JOB_TYPE,
DEPT_DUM, DOB,SUPER_SSN)
• WORKS_ON(EMP_SSN, PNO, HOURS)
• DEPARTMENT(DEPT_NUM, DEPT_NAME,
MANAGER_SSN, MANAGER_DOJ)
• DLOCATIONS(DEPT_NUM, DLOCATIONS)
• PROJECT(PROJ_NUM, PROJ_NAME,
DEPT_NUM)
• DEPENDENT(EMP_SSN, FIRST_NAME,
LAST_NAME, GENDER, DOB, RELATIONSHIP)
NORMALIZATION
Since each department may
have a different location,
there may be many
department location entries
for a specific department
number. Therefore, the
department table is not in the
INF form. Similarly an
employee may work for
several projects, so for each
entry of the employee, there
may be different entries for a
specific project number.
Hence the table,
EMPLOYEE, will not be in

INSERT INTO EMPLOYEE
VALUES (1, 'James Smith', '12312-1234', '101 Washington Dr.', 'Norfolk', 'VA', '60000', 'Male', 'January 1, 1980');
VALUES (2, 'Mary Johnson', '123122345', '201 Adams Rd.', 'Norfolk', 'VA', '70000', 'Female', 'February 3, 1985');
VALUES (3, 'John Williams', '123123456', '301 Jefferson Ave.', 'Norfolk', 'VA', '80000', 'Male', 'March 6, 1960');
VALUES (4, 'Patricia Jones', '123124567', '401 Madison St.', 'Norfolk', 'VA', '60000', 'Female', 'April 9, 1974');
VALUES (5, 'Robert Brown', '123125678', '501 Monroe, Ct.', 'Norfolk', 'VA', '65000', 'Male', 'May 12, 1989');
VALUES (6, 'Jennifer Davis', '123126789', '601 Q. Adams Blvd.', 'Norfolk', 'VA', '110000', 'Female', 'June 15, 1970');
VALUES (7, 'Michael Miller', '123129876', '701 Jackson Ln.', 'Norfolk', 'VA', '100000', 'Male', 'July 18, 1978');
VALUES (8, 'Linda Wilson', '123128765', '801 Van Buren Trail', 'Norfolk', 'VA', '65000', 'Female', 'August 21, 1987');
VALUES (9, 'William Moore', '123127654', '901 Harrison Hwy.', 'Norfolk', 'VA', '90000', 'Male', 'September 24, 1990');
VALUES (10, 'Elizabeth Taylor', '123126543', '111 Tyler Way', 'Norfolk', 'VA', '85000', 'Female', 'October 27, 1992');
VALUES (11, 'David Anderson', '123125432', '222 Polk Path', 'Norfolk', 'VA', '80000', 'Male', 'November 30, 1983');
VALUES (12, 'Barbara Thomas', '123124321', '333 Taylor Terrace', 'Norfolk', 'VA', '100000', 'Female', 'December 25,
1964');
TABLE-INSERTION FOR EMPLOYEES

TABLES- EMPJOB
CREATE TABLE EmployeeJob (
empjob_CEO VARCHAR(15),
empjob_Clerk VARCHAR(20),
empjob_Engineer VARCHAR(15),
empjob_Manager VARCHAR(15),
empjob_President VARCHAR(15),
empjob_Programmer
VARCHAR(15),
empjob_Secretary VARCHAR(15),
empjob_Vicepresident
VARCHAR(15));

TABLES JOB
• SELECT *
• FROM Job;

TABLES-EMP SKILL
• CREATE TABLE EmployeeSkills_
(EmployeeID VARCHAR(10) NOT
NULL, SkillID VARCHAR(12) NOT
NULL, CONSTRAINT
EmployeeSkills_PK PRIMARY KEY
(EmployeeID, SkillID), CONSTRAINT
EmployeeSkills_FK1 FOREIGN KEY
(EmployeeID) REFERENCES
Employee_T(EmployeeID),
CONSTRAINT EmployeeSkills_FK2
FOREIGN KEY (SkillID) REFERENCES
Skill_(SkillID));
• SELECT*
• FROM EMP SKILL;

TABLES- SKILL
• SELECT *
• FROM Skill;
• CREATE TABLE Skill_(SkillID
VARCHAR(12) NOT NULL,
SkillDescription VARCHAR(30) ,
CONSTRAINT Skill_PK PRIMARY KEY
(SkillID));

TABLES
DEPARTMENT
• SELECT *
• FROM DEPARTMENTS;
Information Technology
Public Relations
Custodial
Records
Research and Development
Operations
Finance
Human Relations
Sales and Marketing
Accounting
Integration Management

INSERT INTO DEPARTMENT
VALUES ('Finance', '123-1111', 'James Smith');
VALUES ('Human Resources', '123-1112', 'Mary Johnson');
VALUES ('Information Technology', '123-1113', 'John
Williams');
VALUES ('Service', '123-1114', 'Patricia Jones');
VALUES ('Sales', '123-1115', 'Robert Brown');
VALUES ('Accounting', '123-1116', 'Jennifer Davis');
VALUES ('Marketing', '123-1117', 'Michael Miller');
VALUES ('Administrative', '123-1118', 'Linda Wilson');
VALUES ('Planning', '123-1119', 'William Moore');
VALUES ('Legal', '123-1120', 'Elizabeth Taylor');
VALUES ('Maintenance', '123-1121', 'David Anderson');
TABLE-INSERTION FOR DEPARTMENT

Insertion for department
work history
INSERT INTO DepartmentWorkhistory
VALUES ('1','1', 'October 31,2014');
VALUES ('1','11','October 31,2014');
VALUES ('1','2','October 31,2014');
VALUES ('2','3','November 5,2014');
VALUES ('4','4', 'November 9,2014');
VALUES ('5','10','November 13,2014');
INSERT INTO DEepartmentWorkhistory
VALUES ('5','7','November 13,2014');

TABLES- DEPARTMENT WORK
HISTORY
CREATE TABLE DepartmentWorkhistory (
hist_number VARCHAR2(20),
hist_dparmentnumber
VARCHAR2(10),
hist_start VARCHAR2(20)
);

TABLE-CREATION FOR DEPARTMENT AND PROJECT

TABLE INSERTION FOR PROJECT
INSERT INTO proj
VALUES ('BATMAN', 1, 'Building 1',
'$350000');
INSERT INTO proj
VALUES ('BIGFOOT', 2, 'Building 2',
'$500000');
INSERT INTO proj
VALUES ('CANARY', 3, 'Building 3',
'$150000');
INSERT INTO proj
VALUES ('CASANOVA', 4, 'Building 1',
'$640000');
INSERT INTO proj
VALUES ('WHISTLER', 5, 'Building 3',
'$300000');

TABLES FOR PROJ
LOCATIONS
CREATE TABLE ProjLocations (
"3334 Princess Anne Rd Virginia Beach VA" VARCHAR(35),
"1320 Greenbrier Pkwy Chesapeake, VA" VARCHAR(40),
"201 S Rosemont RD Virginia Beach, VA" VARCHAR(40),
"1800 Greenbrier Pkwy Chesapeake, VA" VARCHAR(45),
"111 W Tazewell St Norfolk, VA" VARCHAR(35),
"217 Grace St Norfolk, VA" VARCHAR(20),
"565 Cedar Rd Chesapeake, VA" VARCHAR(25),
"4532 Columbus St Virginia Beach,VA" VARCHAR(30)
);

Insertion for MarPart
INSERT INTO MARPART
VALUES ('1','1');
INSERT INTO MARPART
VALUES ('2','6');
INSERT INTO MARPART
VALUES ('3','2');
INSERT INTO MARPART
VALUES ('4','4');
INSERT INTO MARPART
VALUES ('5','3');
INSERT INTO MARPART
VALUES ('6','5');

Tables-Marpart
• SELECT*
• FROM Marpart;
CREATE TABLE MARPART (
mar_marnumber VARCHAR2(20)
mar_employeenumber VARCHAR2(10)
);

TABLES- EMP
DEPENDENT
• SELECT*
• FROM EmpDependent;
CREATE TABLE EmpDependent (
EmpDependentName VARCHAR(20),
EmpDependentgender VARCHAR(1),
EmpDependentDOB VARCHAR(8),
EmpDependentRelationship VARCHAR(15)
);

TABLES FOR DEPENDENTS
(SPOUSES SIGNIFICANT OTHER)
• SELECT *
• FROM dependents;

TABLE-INSERTION FOR DEPENDENT
INSERT INTO DEPENDENTS
VALUES ('Jimmy Smith', 'male', 'December 31, 2010', 'James
Smiths');
VALUES ('Mars Johnson', 'male', 'November 27,2009', 'Mary
Johnsons');
VALUES ('Robby Brown', 'male', 'September 8, 2012', 'Robert
Browns');
VALUES ('Barbie Thomas', 'female', 'March 23, 2003',
'Barbara Thomas');
VALUES ('Lindsey Wilson', 'female', 'August 12, 2007', 'Linda
Wilsons');
VALUES ('Michelle Miller', 'female', 'January 29, 2005',
'Michael Millers');

TABLE CREATION FOR
VENDOR AND DEPENDENT

INSERT INTO VENDOR
VALUES ('Office Supply Co', '123 Pencil
Path', '12-JUN-20');
INSERT INTO VENDOR
VALUES ('Snax and Such','32 Chips Ct.', '24-
NOV-20');
INSERT INTO VENDOR
VALUES ('Materials Company', '53 Wood
Way', '01-Dec-20');
INSERT INTO VENDOR
VALUES ('Assurance Insurance', '1 Claim
Ave.', '05-Jan-21');
INSERT INTO VENDOR
VALUES ('U O Them Tax Agency', '4 Money
St.', '29-Feb-21');
INSERT INTO VENDOR
VALUES ('Utilities', '10 Electric Blvd.', '30-Mar-
21');
TABLE-INSERTION VENDOR

TABLES- DEPT VENDOR
• SELECT*
• FROM DeptVendor;
CREATE TABLE
DeptVendor_Name VACHAR(20)
DeptVendor_address VACHAR(30)
DeptVendor_date(25)
DeptVendor_price(25)
);

TABLES FOR VENDOR
• SELECT *
• FROM Vendor;
CREATE TABLE VENDOR (
vend_name VARCHAR2(20),
vend_address VARCHAR2(30),
vend_date VARCHAR2(20),
vend_price VARCHAR2(20),
);

TABLES-MANAGER HIST
• SELECT *
• FROM ManagerHist;
CREATE TABLE ManagerHistory (
mana_number VARCHAR2(20)
mana_departmentnumber
VARCHAR2 (10)
mana_start VARCHAR2(20
);

TABLE-INSERTION FOR MANAGER
HISTORY

TABLE INSERTION FOR
ASSIGNMENT
INSERT INTO ASSIGNMENT
VALUES (1, 1, 40);
VALUES (2, 2, 20);
VALUES (3, 3, 40);
VALUES (4, 4, 80);
VALUES (5, 5, 10);
VALUES (6, 6, 35);
VALUES (7, 7, 75);
VALUES (8, 8, 50);
VALUES (9, 9, 20);
VALUES (10, 10, 5);

Is a DBMS right for Project Inc?
Can Project Inc afford a DBMS?
Does the benefit outweigh the costs?

COST OF THE DATABASE
LIFE CYCLE

LEON’S QUERIES
1. Add 2 columns to the EMPLOYEE table, one for employee start date and one for name of spouse
ALTER TABLE EMPLOYEE ADD(emp_startdate VARCHAR2(20), emp_spouse VARCHAR(20) );
1. Show the wages of employees from the EMPLOYEE table.
SELECT emp_salary FROM EMPLOYEE;
1. Add a new dependent into the DEPENDENTS table for William Moore’s son, Wilheim, who is a male,
born June 20, 2019.
INSERT INTO DEPENDENTS VALUES( ‘Wilheim’, ‘male’, ‘June 20, 2019’, ‘William Moore’s son’};

HALEY’S QUERIES
1. Add a column to PROJ table for the projects start date
ALTER TABLE PROJ ADD (proj_start_date DATE);
1. Add new employee Haley Nixon.
INSERT INTO EMPLOYEE VALUES (13, ‘Haley Nixon’, ‘1517 Monarch Way’,
‘Norfolk’, ‘VA’, ‘55,000’, ‘female’, ‘September 12, 1997’);
1. After Haley’s first year of employment, she received a raise totaling $75,000.
Update her salary earned.
UPDATE EMPLOYEE SET salary = ‘75,000’ WHERE emp_id = ‘13’;

LATRELL’S QUERIES
1. The project manager needs the addresses of all the vendors to properly document
information. Display the addresses only from the vendor table
select vend_address from VENDOR;
2.Add a colum to the MARPART table titled ‘relationship’
ALTER TABLE marpart
ADD mar_relationship VARCHAR(20);
3.The team project is taking longer than expected. Add a new row into the manager history
database. Manager number 7,
INSERT INTO History
VALUES (‘7’,’12’,’December 15, 2014’);

Liz’s Queries
1.Add two columns to the EMPLOYEES
table. One column, named EmpDate,
contains the
date of employment for each employee,
and its default value should be the
system
date. The second column, named
EndDate, contains employees’ date of
Termination.
ALTER TABLE employees
ADD empdate DATE DEFAULT
SYSDATE

2. Display a list of all the data
contained in EmpDependent
table.
Liz’s Queries

3. Display a list of all the data contained in projlocations table.
SELECT *
FROM projlocations
Liz’s Queries

1. Standards can be enforced
The DBMS has central control over the database, the DBA can ensure
that all applications follow certain standards, such as data formats,
document standards, etc.
1. Lower Costs
The DBMS system is expensive, but the maintenance cost after
purchase is very low. It can be maintained by a few programmers, and
it is not expensive for the enterprise
1. Less Data Loss
Due to the many security constraints on the database, the chance of
data loss is minimized.

1. Lower Efficiency
The DBMS is a multi-purpose software that can be used for many
purposes, so the efficiency is reduced.
1. More Vulnerabilities
The DBMS has a centralized function, it has many functions,
but the centralization also increases the vulnerability. The
entire system shuts down due to the failure of a single
component. For organizations that are completely
dependent on the database, this is a very critical
shortcoming of the DBMS
1. Costly Data Conversion
The conversion cost is greater than the sum of the DBMS hardware
and machine costs. Trained staff is needed to convert data to the
new system. This is the main reason why most organizations are still
using the old DBMS due to the high cost of data conversion.

Communication skills are vital to DBAs who
work in teams with computer programmers and
managers. These experts are used in
a wide range of settings in the public and private
sectors, and some DBAs work as specialists to
corporations.
The Bureau of Labor Statistics projects 9.7 percent
employment growth for database administrators between
2019 and 2029. In that period, an estimated 12,800 jobs
should open up.

In conclusion, we learned that teamwork is a
valuable part of developing successful processes,
projects, and procedures to drive the organization
forward. Without good teamwork, the organization
will fall into trouble. People feel underappreciated
and frustrated. However, there are many benefits
when teamwork is put first.

Database Concepts Team Project.pptx

Recommended

Recommended

More Related Content

Recently uploaded

Recently uploaded (20)

Featured

Featured (20)

Database Concepts Team Project.pptx