• Description: Replaces occurrences of a substring within a string.
  • Purpose: Useful for data correction and formatting.
  • Syntax: REPLACE(string, search_string, replace_string)
  • Parameters:
    • string: Original string.
    • search_string: Substring to replace.
    • replace_string: Replacement substring.
  • Returns: The modified string.
  • Example: REPLACE('Hello World', 'World', 'Oracle') returns 'Hello Oracle'.
  • Notes: Replaces all occurrences.
  • Use Case: Correcting typos in user inputs.

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