求函数的单调区间有哪几种方法

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select * from tbl_Articles WHERE ArticleID=2227382 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2227382 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2227382 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1088668,1130011,1064573,1053204,1055526,1065333,1092428,1055361,1084593,1081213,1050917,1066470,1093397,1128521,1073515,1125095,1070692,1083662,1062716,1069889,1055235,977420,1086095,1077496,1046566,1049816,1062880,1095812,1061328,1064631) ORDER BY field (ArticleID,1088668,1130011,1064573,1053204,1055526,1065333,1092428,1055361,1084593,1081213,1050917,1066470,1093397,1128521,1073515,1125095,1070692,1083662,1062716,1069889,1055235,977420,1086095,1077496,1046566,1049816,1062880,1095812,1061328,1064631)