CONNECT BY LEVEL IN TRIGGER IS IN WAITING STATE

Question

WITH emp_data
     AS (SELECT 1 empno,
                'mgr1' name,
                NULL mgr,
                5 num_of_reportees,
                'Create' Status
           FROM DUAL
         UNION ALL
         SELECT 2,
                'mgr2',
                NULL,
                6,
                'Wait'
           FROM DUAL)
SELECT *
  FROM emp_data;
create sequence emp_data_seq start with 3 increment by 1;
now I want to insert num of employees based on num_of_reportees column in the table for the emp status = 'Create' and below code is doing the same.
INSERT INTO emp_data
   SELECT emp_data_seq.NEXTVAL,
          name,
          NULL,
          NULL,
          NULL
     FROM (    SELECT DISTINCT 'emp' || LEVEL name
                 FROM emp_data
           CONNECT BY LEVEL <= num_of_reportees AND status = 'Create');
Initiall status will be Wait, whenever user changes it from Wait to Create only this operation has to perform, when I place this insert statment in trigger it's not executing and is in waiting state
Could you please let me know how to achieve this requirement using trigger,
I couldn't use the procedure for this requirement, Its a standard application and we are doing customization

Answer 1

SQL> SELECT  *
  2    FROM  emp_data
  3  /
     EMPNO NAME        MGR NUM_OF_REPORTEES STATUS
         1 mgr1                           5 Create
         2 mgr2                           6 Wait
INSERT
  INTO emp_data
  SELECT  emp_data_seq.NEXTVAL,
          'emp' || column_value,
          NULL,
          NULL,
          NULL
    FROM  emp_data,
          TABLE(
                CAST(
                     MULTISET(
                              SELECT  level
                                FROM  dual
                              CONNECT BY LEVEL <= num_of_reportees
                     AS sys.OdciNumberList
    WHERE status = 'Create'
5 rows created.
SQL> SELECT  *
  2    FROM  emp_data
  3  /
     EMPNO NAME        MGR NUM_OF_REPORTEES STATUS
         1 mgr1                           5 Create
         2 mgr2                           6 Wait
         3 emp1
         4 emp2
         5 emp3
         6 emp4
         7 emp5
7 rows selected.
SQL> SY.