Here is my SQL Query:
SELECT "PO_HDR"."DOC_NO", "PO_LINE"."PARTNUMBER", "PO_LINE"."ADDED_DTE",
"PO_LINE"."UNITP", "PO_LINE"."QORDER", "PO_LINE"."SUBTOTAL",
"PO_LINE"."STATUS", "PO_HDR"."CUST_REF3", "PO_HDR"."CUST_REF4",
"PO_HDR"."DOC_TYPE", "STOCK"."STK_TYPE", "STOCK"."CATEGORY"...