关于职位层级的查询：

SELECT
 PPXA.FULL_NAME             "PERSON NAME"
,POSA.NAME                  "POSITION"
,PCF.CONTROL_FUNCTION_NAME  "DOCUMENT TYPE"
,PCGA.CONTROL_GROUP_NAME    "APPROVAQL GROUP NAME"
,PCR.OBJECT_CODE            "OBJECT TYPE"
,PCR.AMOUNT_LIMIT           "APPROVAL LIMIT"   
,PPXB.FULL_NAME             "SUPERVISOR NAME"
,POSB.NAME                  "SUPERVISOR POSITION"   
,PPS.NAME                   "HIERRACHY NAME"
 FROM
 apps.PO_POSITION_CONTROLS_ALL  PPCA
,apps.PO_CONTROL_RULES          PCR  
,apps.PO_CONTROL_GROUPS_ALL     PCGA 
,apps.PO_CONTROL_FUNCTIONS      PCF  
,apps.PER_ASSIGNMENTS_X         PAXA 
,apps.PER_POSITIONS             POSA 
,apps.PER_PEOPLE_X              PPXA 
,apps.PER_ASSIGNMENTS_X         PAXB 
,apps.PER_POSITIONS             POSB 
,apps.PER_PEOPLE_X              PPXB 
,apps.PER_POS_STRUCTURE_ELEMENTS   PSV 
,apps.PER_POSITION_STRUCTURES   PPS    
WHERE PPXA.PERSON_ID            = PAXA.PERSON_ID
 AND  PAXA.POSITION_ID          = POSA.POSITION_ID
 AND  PPCA.POSITION_ID(+)          = POSA.POSITION_ID
 AND  PPCA.CONTROL_GROUP_ID     = PCGA.CONTROL_GROUP_ID(+)
 AND  PPCA.CONTROL_FUNCTION_ID  = PCF.CONTROL_FUNCTION_ID(+)
 AND  PPCA.CONTROL_GROUP_ID     = PCR.CONTROL_GROUP_ID(+)
 AND  PSV.SUBORDINATE_POSITION_ID =POSA.POSITION_ID
 AND  PSV.PARENT_POSITION_ID = POSB.POSITION_ID(+)
 AND  PAXB.POSITION_ID(+)     = POSB.POSITION_ID
 AND  PPXB.PERSON_ID (+)        = PAXB.PERSON_ID
 AND PPS.POSITION_STRUCTURE_ID= PSV.POS_STRUCTURE_VERSION_ID
 AND PPXA.FULL_NAME LIKE '%Ping, Mr. Fuu%';