PLS-00561

Error: PLS-00561: character set mismatch on value for parameter 'string'

Causa: An expression was used that contains an incorrect character set. The actual argument has a character set conflict. If a default argument value is being used, it might be in conflict with some actual argument that must have the same character set.

Acción: Adjust the expression, using TRANSLATE(... USING ...) or change the character set.