comp4 unit6d lecture slides

Introduction to Information and Computer ScienceDatabases and SQL

Lecture d

This material (Comp4_Unit6d) was developed by Oregon Health & Science University, funded by the Department of Health and Human Services, Office of the National Coordinator for Health Information Technology under Award Number

IU24OC000015.

Databases and SQLLearning Objectives

• Define and describe the purpose of databases (Lecture a)• Define a relational database (Lecture a)• Describe data modeling and normalization (Lecture b)• Describe the structured query language (SQL) (Lecture c)• Define the basic data operations for relational databases and how to

implement them in SQL (Lecture c)• Design a simple relational database and create corresponding SQL

commands (Lecture c)• Examine the structure of a healthcare database component (Lecture

d)

2Health IT Workforce Curriculum Version 3.0/Spring 2012

Introduction to Information and Computer Science Databases and SQL

Lecture d

Sample Database Use in VistA• VistA: Veterans

Health Information Systems and Technology Architecture

• Used at Department of Veterans Affairs (VA) health care facilities (US Dept. of Veterans Affairs, 2007, PD-US)



Lecture d

NUMI• National Utilization Management Integration (NUMI)

supports reviews of clinical care activities• NUMI documents patient movements• NUMI is separate from VistA

(NUMI, 2011, PD-US)



Lecture d

Workflow

(NUMI, 2011, PD-US)



Lecture d

NUMI TablesAdmissionReviewTypeCareLevelCermeReviewXMLDismissStayReasonFacilityTreatingSpecialtyMASMovementTransactionTypeMASMovementTypeNumiUserNumiUserSiteActivityBitmaskPatientPatientAuditPatientReviewPatientReviewAuditPatientReviewReasonPatientStay

PatientStayAuditPhysicianPhysicianAdvisorPatientReasonPhysicianAdvisorPatientReviewPhysicianAdvisorPatientReviewAuditReasonRegionReportsReviewTypeServiceSectionSiteStatusVISNWardLocationWebLog



Lecture d

Patient Table (Select Elements)Element Name Data Type Primary

KeyForeign Key

Comments

PatientID int Yes No ID number for patient

PatientName varchar No No Name that the NUMI system associates with patient

Sex varchar No No Sex designation associated with the patient

SSN varchar No No Social Security Number associated with patient

SiteID smallint Yes Yes ID number for Site

6.24 Table: Patient table (Select elements) (PD-US).



Lecture d

Site Table (Select Elements)Element Name Data

TypePrimary Key

Foreign Key

Comments

SiteID smallint Yes No ID number for site

SiteName varchar No No Name of site

DisplayName varchar No No Displayed name for site

6.25 Table: Site table (Select elements) (PD-US).



Lecture d

ER Diagram

6.26 Diagram: Entity-relationship (ER) Diagram. (PD-US, 2011)



Lecture d

Patient Review Table (Select Elements)

Element Name Data Type Primary Key

Foreign Key

Comments

PatientReviewID bigint Yes No ID number for Patient Review

PatientID int No Yes ID number for Patient

ReviewDate smalldatetime

No No Date patient was reviewed

UMRAttendingPhysicianID int No Yes ID number for Attending Physician

PatientStayID bigint No Yes ID number for Patient Stay

CurrentCareLevelID tinyint No Yes ID number for Level of Care

WardLocationID smallint No Yes ID number for Ward Location

6.27 Table: Patient review table (Select elements) (PD-US, 2011).



Lecture d

ER Diagram

6.28 Diagram: Entity-relationship diagram (PD-US, 2011).



Lecture d

Patient Review in NUMI

(NUMI, 2011, PD-US)



Lecture d

Databases and SQLSummary – Lecture d

• Viewed an example application: NUMI• Examined the NUMI database structure

– Tables– Relationships



Lecture d

Databases and SQLSummary

• Data and type are independent• Speed and efficiency are critical for data access• Four basic data operations: retrieval, addition, modification and deletion• Information relationships and types are maintained in a relational database• Designed a simple database• Improved the database design using normalization to remove duplicate data• Introduced to SQL statements and data types• Created a database and database tables• Learned basic select, insert, delete and update SQL statements• Examined design of a production healthcare database



Lecture d

Databases and SQLReferences – Lecture d

References• U.S. Department of Veterans Affairs. (2011, September 21, 2011). Veterans Health Information Systems and

Technology Architecture. Retrieved December 19, 2011, from http://www.va.gov/VISTA_MONOGRAPH/index.asp • U.S. Department of Veterans Affairs. (2011). User Guide for National Utilization Management Integration (NUMI),.

Retrieved Jan 2012 from http://www.va.gov/vdl/documents/HealtheVet/National_Utilization_Management_Integration/numi_user_guide-v1_1_13.doc

• U.S. Department of Veterans Affairs. (2011). Systems Management Guide for National Utilization Management Integration (NUMI). Retrieved Jan 2012 from http://www.index.va.gov/search/va/va_search.jsp?QP=on&QT=Systems+Management+Guide+for+National+Utilization+Management&SQ=http%3A%2F%2Fwww.va.gov%2Fvdl%2Fdocuments%2FHealtheVet%2FNational_Utilization_Management_Integration%2Fnumi_system_management_guide-1_1_13.doc.



Lecture d

Charts, Tables, Figures• 6.24 Table: Patient table (Select elements) (PD-US). • 6.25 Table: Site table (Select elements) (PD-US). • 6.26 Diagram: Entity-relationship (ER) Diagram. (PD-US, 2011)• 6.27 Table: Patient review table (Select elements) (PD-US, 2011).• 6.28 Diagram: Entity-relationship diagram (PD-US, 2011).

http://www.va.gov/VISTA_MONOGRAPH/index.asp

http://www.va.gov/vdl/documents/HealtheVet/National_Utilization_Management_Integration/numi_user_guide-v1_1_13.doc

http://www.va.gov/vdl/documents/HealtheVet/National_Utilization_Management_Integration/numi_user_guide-v1_1_13.doc

Databases and SQLReferences – Lecture d

IMAGES• Slide 3: VistA Image [image on the Internet]. US Dept. of Veterans Affairs (2007). [Updated 10/29/2007; cited

11/8/2011]. Retrieved Jan 2012 from: http://en.wikipedia.org/wiki/File:VistA_Img.png. (PD-US). • Slides 4,12 : NUMI Screenshot . NUMI (2011). U.S. Department of Veterans Affairs. User Guide for National

Utilization Management Integration (NUMI). Retrieved Jan 2012 from http://www.va.gov/vdl/documents/HealtheVet/National_Utilization_Management_Integration/numi_user_guide-v1_1_13.doc. (PD-US).

• Slide 5: NUMI Workflow. NUMI (2011). U.S. Department of Veterans Affairs. User Guide for National Utilization Management Integration (NUMI). Retrieved Jan 2012 from http://www.va.gov/vdl/documents/HealtheVet/National_Utilization_Management_Integration/numi_user_guide-v1_1_13.doc. (PD-US).



Lecture d

comp4 unit6d lecture slides

Documents