我想我只是回答了我自己的问题…嵌套表格！
SELECt doc_text.doc_id, doc_text.language, doc_text.author, doc_text.title, doc_ref.ref_id, ref_master.location_id, location.location_display_name, doc_index.doc_id, doc_index.display_headingFROM DOC_TEXT, DOC_REF, REF_MASTER, LOCATION, DOC_INDEXWHERe聽聽聽 doc_text.language='fr' OR doc_text.language='es'AND聽聽聽 doc_text.doc_id=doc_ref.doc_idAND聽聽聽 doc_ref.doc_id=ref_master.ref_idAND聽聽聽 ref_master.location_id=location.location_idAND聽聽聽 doc_text.doc_id=doc_index.doc_id
