4/9化成小数是多少?

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select * from tbl_Articles WHERE ArticleID=1060438 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1060438 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1060438 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(868922,1770530,585461,679048,981998,870534,1333583,597109,1564346,478166,690607,566637,1202757,912598,3334589,721649,850188,952750,793624,1132846,711564,1157523,674897,2164030,1927838,1210734,1478709,1480735,976565,1301713) ORDER BY field (ArticleID,868922,1770530,585461,679048,981998,870534,1333583,597109,1564346,478166,690607,566637,1202757,912598,3334589,721649,850188,952750,793624,1132846,711564,1157523,674897,2164030,1927838,1210734,1478709,1480735,976565,1301713)