decimal是什么数据类型

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select * from tbl_Articles WHERE ArticleID=1466835 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1466835 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1466835 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(3224648,1148907,3096440,3196078,483098,862455,992834,978813,557772,1073991,679206,726974,2877895,2739693,489159,495583,1059041,411809,87447,927313,3173044,2014299,420042,666251,525643,3151806,812455,555916,1041983,1322300) ORDER BY field (ArticleID,3224648,1148907,3096440,3196078,483098,862455,992834,978813,557772,1073991,679206,726974,2877895,2739693,489159,495583,1059041,411809,87447,927313,3173044,2014299,420042,666251,525643,3151806,812455,555916,1041983,1322300)