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  1. Preface
  2. Part 1: Introduction to Profiles
  3. Part 2: Profiling with Informatica Analyst
  4. Part 3: Profiling with Informatica Developer

Profile Guide

Profile Guide

Patterns

Patterns

You can view the patterns for the column values and the frequency in which the patterns appear in summary view and detailed view.
In the summary view, you can view the multiple patterns in the column as horizontal bar charts. You can view the pattern characters and the number of similar patterns in a column as a percentage when you hover the mouse over the bar chart. In the detailed view, you can view the frequency with which the patterns appear in a column as a horizontal bar chart and in percentages. You can drilldown, add the pattern to a reference table, or create a data domain with the selected pattern.
The profiling warehouse stores a maximum of 16,000 unique highest frequency values including NULL values for profile results by default. If there is at least one NULL value in the profile results, the Analyst tool can display NULL values as patterns.
The Analyst tool cannot derive the pattern for a numeric column that has a precision greater than 38. The Analyst tool cannot derive the pattern for a string column that has a precision greater than 255.
The following table describes the properties for the column patterns:
Property
Description
Pattern
Displays the pattern for the column in the profile.
Frequency
Displays the number of times a pattern appears for a column, expressed as a number.
Percentage
Displays the percentage that a pattern appears for a column.
The following table describes the pattern characters and what they represent:
Character
Description
'B' or 'b' or ' '
Represents a blank space.
'C' or 'c'
Represents any character.
'L' or 'l'
Represents any lowercase alphabetic character.
‘T’ or ‘t’
Represents a tab.
‘U’ or ‘u’
Represents any uppercase alphabetic character.
9
Represents any numeric character. Informatica Analyst displays up to three characters separately in the "9" format. The tool displays more than three characters as a value within parentheses. For example, the format "9(8)" represents a numeric value with eight digits.
'X' or 'x'
Represents any alphabetic character. Informatica Analyst displays up to three characters separately in the "X" format. The tool displays more than three characters as a value within parentheses. For example, the format "X(6)" might represent the value "Boston."
The pattern character X is not case sensitive and might represent uppercase characters or lowercase characters from the source data.
'P' or 'p'
Represents "(", the opening parenthesis.
'Q' or 'q'
Represents ")", the closing parenthesis.
Column patterns can also include special characters. For example, ~, [, ], =, -, ?, =, {, *, -, >, <, and $.

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