从SQL Server和C＃的输出不同

Question

我相信我的编码有些问题。我猜不是按日期过滤。请帮助

SQL代码：

SELECT 
    CONVERT(char(80), i.InvDate,3) AS InvDate, 
    i.InvoiceNo, 
    i.EmployerCode, 
    i.TaxAmount + i.SubTotal AS Amount, 
    '' AS Payment, 
    pd.GivenName 
FROM 
    dbo.Invoice i 
INNER JOIN 
    dbo.PatientDetails pd ON (pd.MedicalRecordID = i.MedicalRecordID) 

C＃代码：

SqlCommand objCmd = new SqlCommand("SELECT CONVERT(char(80), i.InvDate,3) AS InvDate, 
    i.InvoiceNo, 
    i.EmployerCode, 
    i.TaxAmount + i.SubTotal AS Amount, 
    '' AS Payment, 
    pd.GivenName 
FROM 
    dbo.Invoice i 
INNER JOIN dbo.PatientDetails pd ON (pd.MedicalRecordID = i.MedicalRecordID) 
WHERE (InvDate >= CONVERT(datetime, '" + dtpFrom.Text + "', 105)) 
    AND (InvDate <= CONVERT(datetime, '" + dtpTo.Text + "', 105))," , objConn); 

这就是我想要达到的目标：

http://i47.tinypic.com/167trt3.png

这就是我得到：

http://i50.tinypic.com/28m2z5x.png

在我被踢出这里之前。我会做一些编辑。

编辑：

日期时间处于105格式（DD-MM-YYYY）

WHERE (InvDate >= CONVERT(datetime, '" + dtpFrom.Text + "', 105)) 
AND (InvDate <= CONVERT(datetime, '" + dtpTo.Text + "', 105)) 

这应该从一个特定的日期选择。 EG：从11月2012到2012年15月

即使没有dateTimePicker的，输出不告诉我“给定名称”

Answer 1

，最好的办法是格式化你的DD /输入MMM/yyyy格式。它更好地帮助SqlServer识别月份和日期。无论何时与SqlServer通信，我都强烈建议使用MMM格式。

DateTime fromDate, toDate; 
fromDate = DateTime.Parse(dtpFrom.Text); 
toDate = DateTime.Parse(dtpTo.Text); 

SqlCommand objCmd = new SqlCommand("SELECT CONVERT(char(80), i.InvDate,3) AS InvDate, 
i.InvoiceNo, 
i.EmployerCode, 
i.TaxAmount + i.SubTotal AS Amount, 
'' AS Payment, 
pd.GivenName 
FROM dbo.Invoice i 
INNER JOIN dbo.PatientDetails pd ON (pd.MedicalRecordID = i.MedicalRecordID) 
WHERE datediff(d, '" + fromDate.ToString("dd/MMM/yyyy") + "', i.InvDate) >=0 
AND datediff(d, '" + toDate.ToString("dd/MMM/yyyy") + "', i.InvDate) <=0", objConn); 

，或者如果您有任何约束上，按上述，转换使用输入CONVERT（）

SqlCommand objCmd = new SqlCommand("SELECT CONVERT(char(80), i.InvDate,3) AS InvDate, 
i.InvoiceNo, 
i.EmployerCode, 
i.TaxAmount + i.SubTotal AS Amount, 
'' AS Payment, 
pd.GivenName 
FROM dbo.Invoice i 
INNER JOIN dbo.PatientDetails pd ON (pd.MedicalRecordID = i.MedicalRecordID) 
WHERE datediff(d, CONVERT(datetime, '" + dtpFrom.Text + "', 105), i.InvDate) >=0 
AND datediff(d, CONVERT(datetime, '" + dtpTo.Text + "', 105), i.InvDate) <=0", objConn); 

Answer 2

的问题是由于日期类型为char的转换，过滤可能无法正常工作如你所料。尝试使用datediff，它会诀窍。

SqlCommand objCmd = new SqlCommand("SELECT CONVERT(char(80), i.InvDate,3) AS InvDate, 
i.InvoiceNo, 
i.EmployerCode, 
i.TaxAmount + i.SubTotal AS Amount, 
'' AS Payment, 
pd.GivenName 
FROM dbo.Invoice i 
INNER JOIN dbo.PatientDetails pd ON (pd.MedicalRecordID = i.MedicalRecordID) 
WHERE datediff(d, '" + dtpFrom.Text + "', i.InvDate) >=0 
AND datediff(d, '" + dtpTo.Text + "', i.InvDate) <=0", objConn);