SQL Server: Datetime,Datetime2

select CONVERT(nvarchar(50), '2018-10-10 10:13:32.000', 126)
select convert(nvarchar(MAX), '2018-10-10 10:13:32.999',126)

-- 考试记录（员工答题答案，项目ID,题目ID，员工ID，原答案,要顯示測驗日期時間、答案(只有英文字母都 還有同事姓名及分行
IF EXISTS (select * from sysobjects where id = object_id(N'[dbo].VipExamAnswerRecord') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
DROP TABLE VipExamAnswerRecord
GO
create table VipExamAnswerRecord
(
AnswerRecordID INT IDENTITY(1,1) PRIMARY KEY,
AnswerExamProjectId int not null,	--项目ID
AnswerBranchStaffID int not null,	--员工ID
AnswerExamQuestionsID int not null,	--问题ID
AnswerAskAnswer NVARCHAR(100) NULL, -- 考試者選的答案
AnswerQuestionsAnswer NVARCHAR(100) NOT NULL, -- 原题正确答案
AnswerIsOk BIT DEFAULT(0), -- 1正确，0不正确
AnswerRecordDate datetime2 default(getdate())	--添加时间

)
go
-- datetime	2007-05-08 12:35:29.123
-- datetime2	2007-05-08 12:35:29. 1234567

declare @d1 datetime ,@d2 datetime2
set @d1=getdate()
set @d2=getdate()
select @d1,@d2
go

select getdate();
go

SELECT CONVERT(VARCHAR(28), GETDATE(), 126)

IF EXISTS (SELECT * FROM sysobjects WHERE [name] = 'proc_Select_VipExamAnswerStaffDateSearch')
DROP PROCEDURE proc_Select_VipExamAnswerStaffDateSearch
GO
CREATE PROCEDURE proc_Select_VipExamAnswerStaffDateSearch
(

	@AnswerBranchStaffID int,
	@AnswerExamProjectId int,
	@statDatetime datetime,  -- 秒后小数只有3位  datetime2 秒后小数有7位,根据数据库的设定类型，在程序中也要考虑其一致，否则有查询上就有误差 Geovin Du  涂聚文提示
	@endDatetime datetime -- 秒后小数只有3位
)
as
   declare @where nvarchar(500),@sql nvarchar(800)
    set @sql='select [BranchStaffName],[BranchStaffNO],[BranchStaffCode],BranchName,[ExamQuestionsTitle],ExamProjectTitle,[AnswerAskAnswer],[AnswerQuestionsAnswer],[AnswerIsOk],[AnswerRecordDate] from View_VipExamAnswerRecordHK where [AnswerRecordDate]>='''+CONVERT(nvarchar(50),@statDatetime,126)+''' and [AnswerRecordDate]<='''+CONVERT(nvarchar(50),@endDatetime,126)+''''
    set @where=''
	set @where=@where+' and AnswerBranchStaffID='+cast(@AnswerBranchStaffID as varchar)+' and AnswerExamProjectId='+cast(@AnswerExamProjectId as varchar)

set @sql=@sql+@where+' order by AnswerRecordDate desc'
print(@sql)
exec(@sql)
go

exec proc_Select_VipExamAnswerStaffDateSearch 2631,1,'2018-10-10 10:13:32.000','2018-10-10 10:21:43.999'
go

select CONVERT(nvarchar(50), '2018-10-10 10:13:32.000', 126)
select convert(nvarchar(MAX), '2018-10-10 10:13:32.999',126)

　

Convert.ToDateTime(Eval("ExamRecordEndTime")).ToString("yyyy-MM-dd HH:mm:ss.fff