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Setting a data quality rule ensures your data adheres to data quality characteristics such as accuracy and consistency.

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Prerequisites

  • Access to the NexusOne portal
  • Appropriate permission: nx1_quality

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Select a dataset and set a rule

Perform these steps to select a dataset and set a rule.
  1. Log in to NexusOne.
  2. On the NexusOne homepage, click Quality.
  3. Select your preferred catalog:
    • iceberg: When using an Iceberg table
    • LLM: Not applicable yet
  4. Select a schema and table.
  5. Set a rule. When setting a rule, there are three options:
    • Generate a rule from a description: To use this, enter an instruction describing the rule, then click Send. Here are a few examples of instructions:
      • Verify that all values in the email column follow the valid email address format (user@example.com).
      • Check that all values in the state column use two-letter state abbreviations only, such as GA, CA, or NY.
      Click Accept or Ignore when NexusOne generates a rule.
    • Use recommended suggestions: This displays both recommended rules and any previously generated custom rules. Click Accept or Ignore when NexusOne generates a rule.
    • Create a custom rule: To use this enter the following details:
      • In the Rule Name field, enter a rule name.
      • In the Success Condition field, enter a success condition.
      • In the SQL Query field, enter a SQL query.
      • Optional: In the Description field, describe what the rule validates.
      • Click Create Rule.

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Additional resources