a与b的平方的差怎么表示

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select * from tbl_Articles WHERE ArticleID=1877015 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1877015 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1877015 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1085570,1126784,1042879,1113988,1042292,1063785,1082318,1125660,1124191,1071571,107727,1050661,1113790,1107376,1132617,1091318,999484,1077635,1096058,1071661,1041559,1130676,1304114,981948,1101527,1092275,1110714,1116065,1108530,995295) ORDER BY field (ArticleID,1085570,1126784,1042879,1113988,1042292,1063785,1082318,1125660,1124191,1071571,107727,1050661,1113790,1107376,1132617,1091318,999484,1077635,1096058,1071661,1041559,1130676,1304114,981948,1101527,1092275,1110714,1116065,1108530,995295)