このクエリは正常に機能します。
select CONVERT(DATETIME, GroupAdminEffectiveDate, 101) from ExchangeSmallGroupEnrollment
group by GroupAdminEffectiveDate
以下を返します。
1900-01-01 00:00:00.000
2012-06-30 00:00:00.000
2012-07-01 00:00:00.000
2012-07-11 00:00:00.000
2012-07-23 00:00:00.000
2012-07-25 00:00:00.000
2012-08-01 00:00:00.000
2012-08-14 00:00:00.000
2012-08-26 00:00:00.000
2012-09-01 00:00:00.000
2012-09-03 00:00:00.000
ただし、次のクエリ:
select CONVERT(DATETIME, GroupAdminEffectiveDate, 101) from ExchangeSmallGroupEnrollment
次のエラーが表示されます。
Msg 241, Level 16, State 1, Line 1
Conversion failed when converting date and/or time from character string.
何か案は?とても有難い。
アップデート:
クエリ:
select distinct GroupAdminEffectiveDate from ExchangeSmallGroupEnrollment
結果:
(empty string)
06/30/2012
07/01/2012
07/11/2012
07/23/2012
07/25/2012
08/01/2012
08/14/2012
08/26/2012
09/01/2012
09/03/2012