March 2006
Intermediate to advanced
384 pages
7h 42m
English
Content preview from Refactoring Databases: Evolutionary Database Design
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Chapter 7Data Quality Refactorings
Data quality refactorings are changes that improve the quality of the information contained within a database. Data quality refactorings improve and/or ensure the consistency and usage of the values stored within the database. The data quality refactorings are as follows:
• Add Lookup Table
• Apply Standard Codes
• Apply Standard Type
• Consolidate Key Strategy
• Drop Column Constraint
• Drop Default Value
• Drop Non-Nullable Constraint
• Introduce Column Constraint
• Introduce Common Format
• Introduce Default Value
• Make Column Non-Nullable
• Move Data
• Replace Type Code With Property Flags
Common Issues When Implementing Data Quality Refactorings
Because data quality refactorings change the ...
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