Lesson 9 of 10

Auditing an imperfect dataset

Profile NULL, formats, duplicates, domains and breaks before analysis.

34 minSQL Data Analyst

By the end of this lesson

  • Profile a column
  • Standardize without losing the source
  • Quantify anomalies

SQL Analyst

Continue with the right access

“Auditing an imperfect dataset” is included from SQL Analyst.

30 free days of SQL Pro on registration, subject to the 31 remaining places. No card or automatic renewal.

After signing in, you will return directly to this activity.
Auditing an imperfect dataset — SQL.tn