将数据类型 nvarchar 转换为日期时间 SQL Server 时出错

Question

I am facing a problem

Error converting data type nvarchar to datetime

during inserting a date as a string literal in the format of 26/01/2017 . I am using this code in SQL Server during insert:

CONVERT(DATETIME, @PaymentDate, 104)

Answer 1

Try CONVERT(DATETIME, @PaymentDate, 103)

104 is the German style which uses periods between the numerals, as opposed to slashes. 103 is the British/French style.

See: https://msdn.microsoft.com/en-us/library/ms187928.aspx

Answer 2

I've noticed your question is also tagged with c# .
If you are passing the date from c# to sql server, Don't pass dates as strings. Pass them as DateTime.
The .Net DateTime maps directly to SQL Server's DateTime .
This way, you will not have to deal with the display format at all, since both c# and SQL Server does not store display format in DateTime .

If you really need to convert the string '26/01/2017' to date, you should use 103 for your style argument, as already suggested in other answer.

Answer 3

This Example runs without any problem:

Declare  @PaymentDate  nvarchar(40)
set @PaymentDate = '26/01/2017'
SELECT CONVERT(DATETIME,@PaymentDate,104)

Result:

2017-01-26 00:00:00.000

Answer 4

check the dateformat in sqlserver and then convert accordingly. code for dateformat
SET DATEFORMAT mdy

Answer 5

Try these code, and make sure date value is not null and past 1970-1-1。

CONVERT(DATETIME,@PaymentDate,103)

Or

CONVERT(DATETIME,@PaymentDate,105)

Answer 6

use SelectedDate incase you are saving your data and get that error ie. cmd.Parameters.AddWithValue("EndDate", EndDatep.DateInput.SelectedDate);

Answer 7

The issue I faced was that the date was having the correct format but the time part was incorrect, the date was like

07/28/2021 00:00 PM

where 00 hours cannot be possible in PM, that is why DB was not accepting them while saving the date/time. so I converted the date to

07/28/2021 00:00 AM

and it was saved. maybe helpful for anyone.