[英]c# time to sql date time
I am not able to convert the c# date time 7/31/2017 3:13:49 PM to SQL date time while inserting the records to the database. 将记录插入数据库时,我无法将C#日期时间7/31/2017 3:13:49 PM转换为SQL日期时间。
I am doing this using 我正在使用
DateTime dt = DateTime.Parse("11/23/2010");
string toSqlDate= dt.ToString("yyyy-MM-dd HH:mm:ss");
DateTime finalDate = DateTime.Parse(toSqlDate);
But it's giving me the error. 但这给了我错误。
String was not recognized as a valid DateTime.
无法将字符串识别为有效的DateTime。
将其更改为年/月/日后,这将有所帮助!
var sqlDate = finalDate.Date.ToString("yyyy-MM-dd HH:mm:ss");
Your dateformat says 'year-month-day' while your date is 'month/day/year', that can't be right. 您的日期格式为“年-月-日”,而日期为“月/日/年”,则可能不正确。 Either change your dateformat or your date's formatting.
更改日期格式或日期格式。
This should work: 这应该工作:
DateTime dt = DateTime.Parse("2010-11-23 00:00:00");
string toSqlDate= dt.ToString("yyyy-MM-dd HH:mm:ss");
将查询更改为
insert into table_name (column1) values ('" + dt.Value.ToString("yyyy-MM-dd") + "')
Try the method DateTime.ParseExact and specify The date format that is suitable for you, here is an example from MSDN ( https://msdn.microsoft.com/fr-fr/library/w2sa9yss(v=vs.110).aspx ) : 尝试使用方法DateTime.ParseExact并指定适合您的日期格式,这是MSDN的示例( https://msdn.microsoft.com/fr-fr/library/w2sa9yss(v=vs.110).aspx ):
var dateString = "06/15/2008";
var format = "d";
try {
var result = DateTime.ParseExact(dateString, format,
CultureInfo.InvariantCulture);
Console.WriteLine("{0} converts to {1}.", dateString,
result.ToString());
}
catch (FormatException)
{
Console.WriteLine("{0} is not in the correct format.", dateString);
}
The .Net DateTime
maps directly to SQL Server DateTime
. .Net
DateTime
直接映射到SQL Server DateTime
。 This means you don't need to worry about the display format at all, since DateTime
does not have a display format. 这意味着您完全不必担心显示格式,因为
DateTime
没有显示格式。
All you need to do is pass the instance of the DateTime
struct as a parameter to the SqlCommand
: 您需要做的就是将
DateTime
结构的实例作为参数传递给SqlCommand
:
SqlCommand.Parameters.Add("@DateTimeParam", SqlDbType.DateTime).Value = dt;
Bonus reading: How do I create a parameterized SQL query? 奖励阅读: 如何创建参数化的SQL查询? Why Should I?
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