一位数是什么意思

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select * from tbl_Articles WHERE ArticleID=2167311 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2167311 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2167311 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1108355,1092081,1120416,1104430,1038168,421453,400450,3401490,1098653,381795,424340,1094497,1091793,101132,1101015,417626,1323305,409525,2679226,2606884,3108556,1100615,1101255,689229,377903,385055,396911,1122435,1087483,1115317) ORDER BY field (ArticleID,1108355,1092081,1120416,1104430,1038168,421453,400450,3401490,1098653,381795,424340,1094497,1091793,101132,1101015,417626,1323305,409525,2679226,2606884,3108556,1100615,1101255,689229,377903,385055,396911,1122435,1087483,1115317)