Question

我发现很多关于此问题的问题，我尝试了一切，但还没有成功。

我需要将日期传递给我的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;
     }
}

我尝试了什么：

如上所述Link

  com.Parameters.Add(database.CreateParameter("@Admitdate", PatientRegistration.AdmitDate.ToString("dd/MM/yyyy")));

和this link

com.Parameters.Add(database.CreateParameter("@Admitdate", "'"+PatientRegistration.AdmitDate+"'"));

然后我尝试了this link

 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));

这些方法抛出此异常：

操作数类型冲突：int与日期不兼容

我收到的PatientRegistration.AdmitDate来自：{2/25/2013 12:00:00 AM}

我试过这些所有方法但无法保存它。请帮我解决这个问题。

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

这个问题可能已经在这里得到了答案（关闭投票）： - ＆gt;我尝试了那里建议的答案（参见选项2），但似乎无法使用我的问题

答案： 经过几次调查，我发现由于我在数据库中的错误而发生此问题。

我没有将值传递给ReleaseDate字段，并且在数据库中设置为default value。该默认值是与日期不兼容的值。这就是造成这个问题的原因。任何我能够如Ashok kumar所提及的那样传递我的价值

Answer 1

我仅修改了@Admitdate行的代码。

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;
 }
}

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Answer 2

数据库表格列的数据类型为Date，您可以尝试DateTime还是datetime2。

并且不要将Date变量括在引号中：

com.Parameters.Add(database.CreateParameter("@Admitdate",PatientRegistration.AdmitDate))

Answer 3

command.Parameters.AddWithValue("@yourDateTimeVariable", dateTimeObject); ????

Answer 4

cmd.Parameters.AddWithValue("@DATE", DateTime.Now);

在c＃中将日期插入数据库

4 个答案: