January 2003
Intermediate to advanced
300 pages
15h 18m
English
Content preview from Data Quality
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I 3 C) C H A P T E R 7
Data Profiling
Overview
DATA QUALITY FACTS
The database of information gathered for data quality facts includes identifi-
cation of rows and values that failed to pass the many rules used in the data
profiling process. This information should include
9 table and column name
9 property rule
9 invalid value list with frequency of each
table and rowlD containing the violation
9 total number of rows tested
The rowlD may be a list of rowlDs. There may be a number of rows that
match the violation. If one rule violation encompasses multiple data rows, this
should also be captured.
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