这两天遇到一个非常奇怪的问题，给人的感觉有点匪夷所思，如下所示，在更新一个表的统计信息时，会遇到“遇到以零作除数错误”，本来这个错误是属于数学错误，但是居然出现在更新统计信息的SQL语句里面
UPDATE STATISTICS [dbo].[FIInspectFabric] SAMPLE 20 PERCENT;
消息 8134，级别 16，状态 1，第 1 行
遇到以零作除数错误。
UPDATE STATISTICS [dbo].[FIInspectFabric] WITH FULLSCAN;
消息 8134，级别 16，状态 1，第 1 行
遇到以零作除数错误。
如果我更新统计信息的SQL语句不带参数，则会执行成功。如下所示
UPDATE STATISTICS [dbo].[FIInspectFabric];
DBCC CHECKTABLE('FIInspectFabric')也没有发现任何问题，Google、Bing搜索了很久也没有查到相关资料。
问题出在哪里？一直没有答案。直到我检查这个表的索引时，发现在表 FIInspectFabric的字段A、B上建立了主键索引、然后不知道那个程序员又在字段A上建立了两个索引（严重鄙视之），于是删除了这两个索引 后，重新执行上面语句OK,问题消失了，于是我建立了测试表，想重现这个错误，很奇怪，怎么也重现不了这个错误。
====***************************************************2015-07-21日补充************************************************====
今天又出现了这个错误，重建索引后，问题依然存在，在检查这个表的统计信息时，发现除了索引对应的统计信息外，还有大量额外的统计信息，于是我将这些统计信息全部删除（系统会根据需要自动建立）。然后去跟新统计信息，问题解决。
DROP STATISTICS FIINSPECTFABRIC._WA_Sys_00000006_712A3EA0
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