Как создать анонимный блок в вызове DB2 с помощью инструмента с графическим интерфейсом, такого как DbVisualizer

Код :

SET SERVEROUTPUT ON;
declare count_t integer  : = 0;
   BEGIN
       CALL DBMS_OUTPUT.PUT_LINE ( 'Hello' );
       CALL DBMS_OUTPUT.PUT_LINE ( 'count_t-' || count_t );
   END;

Невозможно выполнить в DB2. Ошибка :

[Code: -104, SQL State: 42601]  An unexpected token "SERVEROUTPUT" was found following "SET ".  Expected tokens may include:  "SSA".. SQLCODE=-104, SQLSTATE=42601, DRIVER=4.28.11

А также

[Code: -104, SQL State: 42601]  An unexpected token "declare count_t integer" was found following "BEGIN-OF-STATEMENT".  Expected tokens may include:  "<select>".. SQLCODE=-104, SQLSTATE=42601, DRIVER=4.28.11