ORA-06562: type of out argument must match type of column or bind variable

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ORA-06562: type ofout argument must match type of column or bind variable
Cause: Attempting to get the value of a column or a bindvariable by calling
procedure COLUMN_VALUE or VARIABLE_VALUE of package DBMS_SQL but
the type of the given out argument where to place the value is different fromthe
type of the column or bind variable that was previously defined by calling
procedure DEFINE_COLUMN (for defining a column) or BIND_VARIABLE (for
binding a bind variable) of package DBMS_SQL.
Action: Passin an out argument of the correct type when calling procedure
COLUMN_VALUE or VARIABLE_VALUE. The right type is the type that was
provided when defining the column or binding the bind variable.