How will you fix commonly occuring data quality issues in Tableau?

We can fix some commonly occuring data quality issues in Tableau by using a number of ways.

  • Renaming fields.
  • Grouping of fields together that have the same name but the names are written differently. For instance, H&M and Hennes and Mauritz are going to be the same names written differently.
  • Entering Aliases for fields where required.
  • Making suitable corrections in the map when it is unable to process some geographic areas on the map. We can remove them or make changes in the map to rectify such geographical errors.
  • If we are having a lot of null or invalid values, we can bunch them together with non-invalid values or correct the join that is causing the occurrence of null values.
  • Make corrections at the data source if needed.