Query to find Details Of OM and Install Base

SELECT okh.contract_number         "Contract Number",cl.ATTRIBUTE6,
       okh.scs_code                "Code",
       ooh.order_number            "Order Number",
       TO_NUMBER(sl.line_number)   "SL Line",
       sl.lse_id                   "SL LSE ID",
       TO_NUMBER(cl.line_number)   "CL Line",
       cl.lse_id                   "CL LSE ID",
       TO_CHAR(cl.id)              "CL ID",
       msi.inventory_item_id,
       msi.segment1                "Item Number",
       cii.serial_number           "Serial Number",
       okh.start_date              "Contract Start Date",
       sl.start_date               "Line Start Date",
       cl.start_date               "Subline Start Date",
       cii.*
  FROM apps.okc_k_headers_all_b   okh,
       apps.okc_k_lines_b         sl,
       apps.okc_k_lines_b         cl,
       apps.okc_k_items           oki,
       apps.okc_k_rel_objs        rel,
       apps.csi_item_instances    cii,
       apps.mtl_system_items_b    msi,
       apps.oe_order_headers_all  ooh
 WHERE 1=1
   AND okh.id                   =  sl.chr_id
   AND cl.cle_id                =  sl.id
   AND sl.cle_id IS NULL
   AND cl.id                    =  oki.cle_id(+)
   AND oki.object1_id1          =  cii.instance_id
   AND cii.inventory_item_id    =  msi.inventory_item_id
   AND okh.inv_organization_id  =  msi.organization_id
   AND rel.chr_id               =  okh.id
   AND rel.jtot_object1_code    =  'OKX_ORDERHEAD'
   AND rel.object1_id1          =  ooh.header_id
   AND oki.object1_id2          =  '#'
   AND okh.contract_number = 'US000016348'
  -- AND cii.serial_number = 'FM1407CB00D'
 -- AND TO_CHAR(cl.id) = '97803583007615608399812980983947089161'
   -- AND okh.cust_po_number       =  ooh.cust_po_number
   -- AND okh.ship_to_site_use_id  =  ooh.ship_to_org_id
   /* if subline start date is earlier than line start date */
   -- AND sl.start_date > cl.start_date
   -- AND sl.line_number      = 1
 ORDER BY okh.contract_number,
       TO_NUMBER(sl.line_number),
       TO_NUMBER(cl.line_number);