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Setting patterns

This column analysis uses predefined patterns to match the content of the Email and Phone columns against standard email and US phone patterns respectively. This defines the content, structure and quality of emails and phone numbers and give a percentage of the data that match the standard formats and the data that does not match.

Before you begin

  • You have opened the Profiling perspective in Talend Studio.

  • You have created a column analysis and defined the connection to the database.

Procedure

  1. In the Data Preview section in the analysis editor, click Add pattern icon next to the Email column to open the Pattern Selector dialog box.
  2. Expand Regex > internet, select the Email Address check box and click OK to close the dialog box.

    The pattern is added to the column in the Analyzed Columns section.

  3. Click Add pattern icon next to the Phone column to open the Pattern Selector dialog box.
  4. Expand Regex > phone, select the US phone numbers check box and click OK to close the dialog box.

    The pattern is added to the column in the Analyzed Columns section.

  5. Click Options icon next to the Email Address and US phone numbers patterns and set 98.0 in the Lower threshold (%) fields.

    If the number of the records that match the patterns is fewer than 98%, it will be written in red in the analysis results.

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