Database Error Messages

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Updated
Jun 24, 2024

PLS-00620

type mismatch found at 'string' among operands in a COALESCE expression

Cause

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


Action

Change the operands so that their datatypes match. Consider using datatype conversion functions in the operands.