Open Tblfacilities In Datasheet View Notice That The Fields
3open Tblfacilities In Datasheet View Notice That The Fields Manage
Open tblFacilities in datasheet view. Notice that the fields Management, Facility Type, and Manage Type are numbers. Modify these fields to store a number but show a text value instead.
In the Relationship window, modify the three relationships to enforce referential integrity.
Create a relationship report that only shows the tables tblFacilities, tblManagement, tblFacType, tblManageType. Make sure that all fields and relationships are visible. Save the relationship report as rptRel.
Create a query named qryFac-Lookups. Include the fields FacID, MgtID, FacTypeID, MgtTypeID. Show only hospitals that are Long Term (FacTypeID 3) facilities.
Create a query named qryMgtContacts. Add the name of the management companies. Next, add a field that includes the contact’s first names. The field’s label should be Name. Add the contact’s phone number.
Paper For Above instruction
This paper discusses the steps involved in modifying and managing facility-related data in a relational database, focusing on modifying fields to display meaningful text, enforcing referential integrity, generating relationship reports, and creating targeted queries for data analysis.
Introduction
Relational databases are vital tools for managing complex data sets efficiently. In the scenario presented, the goal is to modify existing table fields to improve data readability, ensure data consistency through referential integrity, and generate specific reports and queries to facilitate decision-making. This process not only enhances data accuracy but also streamlines data retrieval for various operational needs.
Modifying Table Fields for Better Data Representation
The first step involves opening the tblFacilities in datasheet view. The table contains several fields—Management, Facility Type, and Manage Type—that are currently stored as numerical values. These fields are intended to represent categories or classifications but are not user-friendly in their raw numeric form. To improve clarity, these fields should be configured to store numbers for data integrity while displaying text values for ease of understanding.
This can be achieved by utilizing lookup fields in the table design view, linking these numeric fields to their respective lookup tables. For example, the Management field can be linked to a table that maps Management IDs to management company names. Similarly, Facility Type and Manage Type fields can be linked to their respective lookup tables. This setup allows users to see descriptive text while maintaining the underlying numerical data, facilitating both data entry consistency and readability.
Enforcing Referential Integrity in Relationships
Next, modifying the relationships in the Relationships window to enforce referential integrity is crucial. Referential integrity ensures that relationships between tables remain consistent— preventing orphan records and maintaining data accuracy. For each relationship between tblFacilities and lookup tables like tblManagement, tblFacType, and tblManageType, it’s essential to enforce referential integrity, cascade updates, or cascade deletes based on the specific use case.
Enforcing referential integrity involves editing each relationship and selecting the option to enforce referential integrity and defining cascading updates or deletes where appropriate. This process safeguards against entering invalid data and ensures that related records are consistently managed, especially during updates or deletions.
Creating a Relationship Report
Creating a relationship report involves generating a visual summary of the database’s table relationships. The report should include only the tblFacilities, tblManagement, tblFacType, and tblManageType tables, with all fields and relationships visible. This report provides an overview of how data is interconnected, which can be instrumental for database design review or documentation purposes.
After generating the report, it should be saved as rptRel. Such reports can be created using the Report Wizard or the report design view in the database software, ensuring that all relationship lines and field details are clearly depicted for analysis or presentation.
Creating the qryFac-Lookups Query
This query aims to filter hospital facilities, specifically showing only those classified as Long Term (FacTypeID 3). It includes the fields FacID, MgtID, FacTypeID, and MgtTypeID. The query is constructed by selecting the relevant fields from tblFacilities, applying a criterion on FacTypeID to only display records where the value is 3. This focused query helps stakeholders analyze long-term healthcare facilities efficiently, facilitating decisions regarding resource allocation or operational planning.
Creating this query involves opening the query design view, adding the appropriate tables, selecting the specified fields, and setting the criterion on FacTypeID to 3. Running this query will result in a dataset that only includes permanent hospital facilities classified as long-term care centers.
Creating the qryMgtContacts Query
The final query, qryMgtContacts, consolidates information from management companies and their contacts. It involves adding the management company names, contact’s first names (under a field labeled 'Name'), and contact phone numbers. This query assists in establishing direct communication channels with management firms, aiding activities such as outreach, partnership management, and data validation.
Constructing this query requires selecting relevant fields from the management contact tables, concatenating or directly including contact names, and renaming the field as 'Name' for clarity. Including contact phone numbers provides essential contact details essential for communication purposes. The outcome is an organized view of all management contacts associated with the facilities, streamlining communication workflows.
Conclusion
In conclusion, modifying table fields to enhance readability, enforcing referential integrity to maintain data consistency, and creating targeted reports and queries are fundamental tasks in database management. These steps improve the usability and integrity of the database, allowing for better data analysis and operational decision-making. Proper execution of these tasks ensures a reliable, efficient, and user-friendly database environment.
References
- Batini, C., Ceri, S., & Navathe, S. B. (1992). Conceptual Database Design: An Entity-Relationship Approach. Benjamin/Cummings Publishing.
- Fundamentals of Database Systems (7th ed.). Pearson.