研究了一天了，也没有搞明白-999是个什么错误：
-999 Not implemented yet.
This error means the functionality being exercised is not currently
implemented. Check the documentation and release notes that
describe this current restriction in this particular release for this
product. If this condition is not described in the regular documentation
or the release notes and recurs, note all circumstances and
contact IBM Technical Support
------解决方案--------------------------------------------------------
contact IBM Technical Support
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这种情况，我们也经常遇到，大多情况下是权限不够或表被锁住造成的。仅表愚见