Module 6: Deriving a Physical Data Design

... Optimizing a Physical Data Design Module 6: Deriving a Physical Data Design 136 Module 6: Deriving a Physical Data Design Optimizing for Updating Data " Denormalization " Transaction ... the physical data design can be optimized for the updating of data. Lead-in Updating data can be a costly process, especially in large...

Ngày tải lên: 18/10/2013, 19:15

... students will be able to: ! Derive a physical data design for tables and fields from a logical data design. ! Analyze data usage characteristics to optimize a physical data design. ! Determine ... Module 6, Deriving a Physical Data Design ! Activity 6.1, “Translating the Logical Data Design ! Activity 6.2, “Optimizing a Physical Data Design...

Ngày tải lên: 17/01/2014, 09:20

... Processes Module 3: Using a Conceptual Design for Data Requirements Module 8: Designing Data Services Module 9: Data Storage Considerations Designing Data Services and Data Models Logical Data Design Entities ... Forward Module 1: Course Overview Module 4: Deriving a Logical Data Design Module 5: Normalizing the Logical Data Design Module 6: Deri...

Ngày tải lên: 21/12/2013, 06:18

... Module 4, Deriving a Logical Data Design ! Activity 4.1, Deriving Entities and Attributes from Data Requirements” ! Activity 4.2, “Creating a Logical Data Model” Preparation To prepare for ... attributes, and relationships. After completing this module, students will be able to: ! Analyze data requirements to determine data entities and attributes. ! Analyze...

Ngày tải lên: 17/01/2014, 09:20

... from Data Requirements Data Relationships Entity/Relationship Modeling Activity 4.2: Creating a Logical Data Model Module 4: Deriving a Logical Data Design Module 4: Deriving a Logical Data Design ... design of a solution. Module 4: Deriving a Logical Data Design 69 The Need for a Logical Data Design " A logical data desig...

Ngày tải lên: 24/01/2014, 11:20

... database daily. Create a separate database and table for the client computers that only accept timesheet data. Replicate this data to the main database as needed. 5. Management must be able to ... unavailable. Solutions can vary. Solutions may include: Replicate the database on the local client computer using MSDE. Create a separate reporting database that receives replicated...

Ngày tải lên: 17/01/2014, 09:20

... Administrator account on his manager’s computer. He uses the account to access confidential data on his manager’s computer. External attacker scenario Internal attacker scenario Module 6: Creating ... your organization, the majority of threats to computers are from people and flawed processes. For example, an attacker physically attacks a computer’s hard disk, or a process...

Ngày tải lên: 21/12/2013, 19:15

... requirements and physical constraints. Materials and Preparation This section provides you with the materials and preparation needed to teach this module. Materials Provide a checklist of materials ... services-based design approach of Module 3. This approach consists of the user, business, and data services that exist between the user interface and data store. Inst...

Ngày tải lên: 17/01/2014, 09:20

... refining a logical model to eliminate duplicate data from a database. Normalization usually involves dividing a database into two or more tables and defining relationships among these tables. Database ... Module 5: Normalizing the Logical Data Design THIS PAGE LEFT INTENTIONALLY BLANK Module 1: Course Overview Module 4: Deriving a Logical Data Design Module 5: Norm...

Ngày tải lên: 16/10/2013, 13:15

... a logical model to eliminate duplicate data from a database. Normalization usually involves dividing a database into two or more tables and defining relationships among these tables. Database ... update and deletion anomalies because all data can be reached via foreign key values and redundant data within each table no longer exists. This level of normalization greatly increa...

Ngày tải lên: 21/12/2013, 06:18