SELECT[TAGNAME]FROM (
SELECT
tagname,ROW_NUMBER() OVER(orderby tagname) AS RowNumber
FROM
(SELECTDISTINCT(tagname) FROM H201402_Hour)
AS S
)
AS T
WHERE RowNumber BETWEEN1and20
---恢复内容结束---
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posted on
2018-05-22 08:21无忧岛主
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