如何做含有绝对值的函数

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select * from tbl_Articles WHERE ArticleID=3191293 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3191293 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3191293 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1179864,2505483,1622405,3236448,1145334,725758,934360,1119710,863706,3487397,1118160,1100581,1967147,959824,512743,388143,1105773,2531101,1094597,802697,1304635,1121212,1100589,365226,1140579,661467,656841,666391,1509943,1106942) ORDER BY field (ArticleID,1179864,2505483,1622405,3236448,1145334,725758,934360,1119710,863706,3487397,1118160,1100581,1967147,959824,512743,388143,1105773,2531101,1094597,802697,1304635,1121212,1100589,365226,1140579,661467,656841,666391,1509943,1106942)