An analyst writes SELECT 100.0 / NULLIF(total, 0) to calculate a percentage. What problem does NULLIF solve here?

SQL Data Analyst Hard

SQL Data Analyst — Hard

An analyst writes SELECT 100.0 / NULLIF(total, 0) to calculate a percentage. What problem does NULLIF solve here?

Key points

  • NULLIF returns NULL if the two specified expressions are equal
  • This function is commonly used to handle division by zero scenarios
  • It helps maintain data integrity by avoiding erroneous results

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