根号49的值是多少为什么

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select * from tbl_Articles WHERE ArticleID=171156 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=171156 LIMIT 0,1
select * from tbl_Articles_sphinx where id=171156 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1064944,1125968,1050367,1055718,1063805,1114608,983947,1127098,1073772,1463424,1061426,1057595,1115909,1130714,1064173,1087523,1055361,1049862,987495,1049836,1132913,1115699,1064449,1065928,1065589,1116743,1050423,1103780,1275870,1064761) ORDER BY field (ArticleID,1064944,1125968,1050367,1055718,1063805,1114608,983947,1127098,1073772,1463424,1061426,1057595,1115909,1130714,1064173,1087523,1055361,1049862,987495,1049836,1132913,1115699,1064449,1065928,1065589,1116743,1050423,1103780,1275870,1064761)