Oracle : Ошибка ORA-06505

"PL/SQL: variable requires more than 32767 bytes of contiguous memory"
*Cause: A PL/SQL variable was declared with a constraint which required more
than 32767 bytes of memory.
PL/SQL does not currently support allocations of contiguous memory
greater than 32767 bytes.
*Action: Consider reducing the constraint in the variable declaration.
If that is not possible, try changing the database or national
character set to such, that requires less memory for the same
constraint. Note: changing the character set will impact execution
of all PL/SQL code.

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