筛选XML SQL查询结果

我有一个XML列：

<xmlList> 
   <XMLEntity> 
      <sug>ACHR</sug>
   </XMLEntity>

  <XMLEntity> 
      <sug>DOA</sug>
   </XMLEntity>
</xmlList>

---

结果是好的，但无论sug是ACHER还是DOA，我都会得到空行。如何避免结果中出现空行？

如果要筛选数据，则应该是WHERE子句，而不是投影列表：

SELECT ...
FROM "TABLE" 
WHERE XMLSERIALIZE(XMLQUERY ('//xmlList/XMLEntity/sug[.!="ACHER" and .!="DOA"]'  
passing KTOVET ) as char large object) != '' -- or whatever comparison you need here

但我建议使用方法来代替。D'oh显然不在DB2上。

谢谢。我无法将char大对象与！=。有什么想法吗？

SELECT ...
FROM "TABLE" 
WHERE XMLSERIALIZE(XMLQUERY ('//xmlList/XMLEntity/sug[.!="ACHER" and .!="DOA"]'  
passing KTOVET ) as char large object) != '' -- or whatever comparison you need here