Database Error Messages

Release
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  • 23ai
  • 21c
  • 19c
Updated
Jun 24, 2024

PLS-00645

character set mismatch found at 'string' among operands in a COALESCE expression

Cause

In a COALESCE expression, the operands do not match in character set and it is unclear which implicit conversion is required to correct the mismatch.


Action

Change the operands so that their character sets match.