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CS542Database Management

Personal Financial PlannerProject Progress Presentation

Jonathan Perreault

11/11/04

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Project Concept

• Personal Financial Planner Software Tool– Store/retrieve financial information– Database stored on WPI Oracle account– Provide java GUI for ease of use– Bridge java to Oracle and use JDBC API for

data entries and queries

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ER Model

Income

TaxesPayment

Account

Operator

idatesource

userid

pdate

damount wamount

type

mamount

year

pamount

type

accountid

typeWithdraw

PayMake

Deposit

useridTransfer

accountfrom

accountto

tdate

tamount

balance

odate

name

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Database Design

• Primary Key Issue– Add dates to most primary keys to allow for multiple

transactions with the same account

• Participation constraints– Combine Pay and Taxes from ER model into one

table– Primary keys on Make and Deposit tables for at most

one transactions

• Triggers, Assertions, and Check Constraints

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User Interface

• Login– Username and password

• Data entries– Pull down menu with options– Text fields to insert data

• Queries– Combination of built in and user defined

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Queries

• Three Types:1. Predefined common queries

2. Predefined queries with user input

3. User defined queries

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Research

• Java and JDBC

• Bridge java to Oracle database

• GUI development

• Triggers

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Current Status

• Made design improvements• Created SQL tables in Oracle account• Researched java, JDBC API, GUI

Development, and Bridging java to Oracle• Performed simple data entries and

queries of database from java code using JDBC

• Began GUI development• Began query development

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Completion Plan

• 5 Weeks– Week 1: Trigger research and development

along with assertions and check constraints– Week 2-3: Code and query development for

more polished product– Week 4: Write-up and Presentation– Week 5: Last minute enhancements