-20129 LOCAL SPECIAL REGISTER IS NOT VALID AS USED

Explanation
 An attempt was made to reference a special register,
but the syntax was invalid for the specified special register.
The CURRENT PACKAGE PATH special
register, or a local special register such as CURRENT SERVER or CURRENT
PACKAGESET cannot be referenced in an assignment statement (SET or
VALUES INTO) where the special register is part of an expression in
the source value, or where multiple source values are being assigned
to multiple targets.
The only valid uses of these special
registers in a SET host-variable statement or VALUES
INTO statement are:
SET :hv= CURRENT SERVER; 
SET :hv= CURRENT PACKAGESET; 
SET :hv= CURRENT PACKAGE PATH; 
VALUES CURRENT SERVER INTO :hv;
VALUES CURRENT PACKAGESET INTO :hv;
VALUES CURRENT PACKAGE PATH INTO :hv;

These restrictions apply only when the reference to the special register appears outside of the
                body of a native SQL procedure or an SQL scalar function.

System action
  The statement cannot be processed.

Programmer response
 Correct the statement in one of the following
ways:Do not use the special register in an expression
as the source value of a SET or VALUES INTO statement.
Do not assign multiple values to multiple
special registers in a SET or VALUES INTO statement.

SQLSTATE
560B5
Severity
8 (error)