在c#中插入数据库日期
本文关键字:数据库 日期 插入 | 更新日期: 2023-09-27 18:01:09
我发现了很多关于这件事的问题,我尝试了一切,但都没有成功。
我需要将日期传递到我的SQL Server数据库。我的代码如下:
public bool CreatePatient()
{
IDbConnection connection = database.CreateOpenConnection();
IDbTransaction transaction = database.BeginTransaction(connection);
try
{
GenerateRegNo();
SQL_STATEMENT = "INSERT INTO TblPatientRegistration(RegistrationNo, HospitalID, NIC, AdmitDate, BHTNo, WardNo)
VALUES(@RegNo, @HospiatlNo, @NIC, @Admitdate, @BHTNo, @WardNo)";
IDbCommand com = database.CreateCommandTransaction(SQL_STATEMENT, connection, transaction);
com.Parameters.Add(database.CreateParameter("@RegNo", PatientRegistration.RegistrationNo));
com.Parameters.Add(database.CreateParameter("@HospiatlNo", PatientRegistration.HospitalID));
com.Parameters.Add(database.CreateParameter("@NIC", PatientRegistration.NIC));
com.Parameters.Add(database.CreateParameter("@Admitdate", PatientRegistration.AdmitDate));
com.Parameters.Add(database.CreateParameter("@BHTNo", PatientRegistration.BHTNo));
com.Parameters.Add(database.CreateParameter("@WardNo", PatientRegistration.WardNo));
if (com.ExecuteNonQuery() > 0)
{
string updStatement = "Update TblControl set RegNo=RegNo+1";
IDbCommand com2 = database.CreateCommandTransaction(updStatement, connection, transaction);
com2.ExecuteNonQuery();
transaction.Commit();
return true;
}
else
{
transaction.Rollback();
return false;
}
}
catch (Exception)
{
transaction.Rollback();
return false;
}
}
我尝试过的:
如上所述,链接
com.Parameters.Add(database.CreateParameter("@Admitdate", PatientRegistration.AdmitDate.ToString("dd/MM/yyyy")));
和这个链接
com.Parameters.Add(database.CreateParameter("@Admitdate", "'"+PatientRegistration.AdmitDate+"'"));
然后我尝试了这个链接
String UrDate = PatientRegistration.AdmitDate.ToString("dd/MM/yyyy");
System.Globalization.DateTimeFormatInfo dateInfo = new System.Globalization.DateTimeFormatInfo();
dateInfo.ShortDatePattern = "dd/MM/yyyy";
DateTime validDate = Convert.ToDateTime(UrDate, dateInfo);
com.Parameters.Add(database.CreateParameter("@Admitdate", validDate));
这些方法抛出这个异常:
操作数类型冲突:int与日期不兼容
我从PatientRegistration.AdmitDate
接收的值为:{2/25/2013 12:00:00 AM}
我尝试了所有这些方法,但都没能保存。请帮我找出这里的问题。
谢谢。。。
编辑:
我的数据库架构:
CREATE TABLE [dbo].[TblPatientRegistration](
[RegistrationNo] [char](10) NOT NULL,
[HospitalID] [char](10) NOT NULL,
[NIC] [char](10) NOT NULL,
[AdmitDate] [date] NOT NULL,
[BHTNo] [varchar](10) NOT NULL,
[WardNo] [varchar](10) NOT NULL,
[ReleaseDate] [date] NOT NULL,
CONSTRAINT [PK_TblPatientRegistration_1] PRIMARY KEY CLUSTERED
(
[RegistrationNo] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
这个问题可能在这里已经有了答案(势均力敌(:-->我尝试了那里建议的答案(见选项2(,但它似乎不适用于我的问题
答案:经过几次调查,我发现这个问题是由于我在数据库中的错误造成的。
我还没有将值传递给ReleaseDate字段,它在数据库中设置为default value
。默认值是表示与日期不兼容的值。这就是造成这个问题的原因。我如何能够传递Ashok kumar 提到的值
我只在@Admitdate行修改了您的代码。
public bool CreatePatient()
{
IDbConnection connection = database.CreateOpenConnection();
IDbTransaction transaction = database.BeginTransaction(connection);
try
{
GenerateRegNo();
SQL_STATEMENT = "INSERT INTO TblPatientRegistration(RegistrationNo, HospitalID, NIC, AdmitDate, BHTNo, WardNo)
VALUES(@RegNo, @HospiatlNo, @NIC, @Admitdate, @BHTNo, @WardNo)";
IDbCommand com = database.CreateCommandTransaction(SQL_STATEMENT, connection, transaction);
com.Parameters.Add(database.CreateParameter("@RegNo", PatientRegistration.RegistrationNo));
com.Parameters.Add(database.CreateParameter("@HospiatlNo", PatientRegistration.HospitalID));
com.Parameters.Add(database.CreateParameter("@NIC", PatientRegistration.NIC));
String admitDate = txtAdmitDate.Text;
DateTime parsedAdmitDate;
if (DateTime.TryParseExact(admitDate, "d/M/y", CultureInfo.InvariantCulture, DateTimeStyles.None, out parsedAdmitDate))
PatientRegistration.AdmitDate = parsedAdmitDate;
//com.Parameters.Add(database.CreateParameter("@Admitdate", PatientRegistration.AdmitDate));
com.Parameters.Add(database.CreateParameter("@BHTNo", PatientRegistration.BHTNo));
com.Parameters.Add(database.CreateParameter("@WardNo", PatientRegistration.WardNo));
if (com.ExecuteNonQuery() > 0)
{
string updStatement = "Update TblControl set RegNo=RegNo+1";
IDbCommand com2 = database.CreateCommandTransaction(updStatement, connection, transaction);
com2.ExecuteNonQuery();
transaction.Commit();
return true;
}
else
{
transaction.Rollback();
return false;
}
}
catch (Exception)
{
transaction.Rollback();
return false;
}
}
如果你需要更多的帮助,请告诉我。
数据库表列的数据类型为Date
,您可以尝试DateTime
还是datetime2
。
不要用引号括起Date变量:
com.Parameters.Add(database.CreateParameter("@Admitdate",PatientRegistration.AdmitDate))
command.Parameters.AddWithValue("@yourDateTimeVariable", dateTimeObject);
????
cmd.Parameters.AddWithValue("@DATE", DateTime.Now);