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我正在寻找与SQL完全衔接的帮助。还是比较新的...SQL分组结果,小计和总计
这里是我此刻在做什么:
private void FillSalesGrid()
{
using (SqlConnection con = new SqlConnection(conn))
{
sqlBuilder.Append("SELECT FORMAT(date, 'd', 'en-gb') AS Date, saleID AS [Invoice ID], Patient.firstName + ' ' + Patient.lastName AS [Name], description AS Description, saleType AS [Type of Sale], saleAmount AS [Amount (R)] FROM Sale LEFT JOIN Patient ON Sale.patientIDNumber = Patient.patientIDNumber WHERE 1=1");
if (!string.IsNullOrEmpty(comboBox_selectSaleType.Text))
{
try
{
sqlBuilder.Append(" AND saleType = @saleType");
cParameters.Add(new SqlParameter("@saleType", comboBox_selectSaleType.SelectedItem.ToString()));
}
catch
{
MessageBox.Show("no results");
}
if (comboBox_selectSaleType.Text == "All Sales")
{
sqlBuilder.Remove(sqlBuilder.Length - 25, 25);
}
}
if (!string.IsNullOrEmpty(datePicker_StartDate.Text) || !string.IsNullOrEmpty(datePicker_EndDate.Text))
{
if (!string.IsNullOrEmpty(datePicker_StartDate.Text) && string.IsNullOrEmpty(datePicker_EndDate.Text))
{
sqlBuilder.Append(" AND date > @startDate");
cParameters.Add(new SqlParameter("@startDate", datePicker_StartDate.Text));
}
else if (string.IsNullOrEmpty(datePicker_StartDate.Text) && !string.IsNullOrEmpty(datePicker_EndDate.Text))
{
sqlBuilder.Append(" AND date < @endDate");
cParameters.Add(new SqlParameter("@endDate", datePicker_EndDate.Text));
}
else
{
sqlBuilder.Append(" AND date BETWEEN @startDate AND @endDate");
cParameters.Add(new SqlParameter("@startDate", datePicker_StartDate.Text));
cParameters.Add(new SqlParameter("@endDate", datePicker_EndDate.Text));
}
}
if (!string.IsNullOrEmpty(comboBox_select_Item.Text))
{
sqlBuilder.Append(" AND Description LIKE @medName + '%'");
cParameters.Add(new SqlParameter("@medName", comboBox_select_Item.SelectedItem.ToString()));
}
if (!string.IsNullOrEmpty(textBox_PatientIDSelect.Text))
{
sqlBuilder.Append(" AND Sale.patientIDNumber = @patientID");
cParameters.Add(new SqlParameter("@patientID", textBox_PatientIDSelect.Text));
}
sqlBuilder.Append(" ORDER BY Sale.date");
SqlCommand cmd = new SqlCommand(sqlBuilder.ToString(), con);
if (cParameters.Count != 0)
{
cmd.Parameters.AddRange(cParameters.ToArray());
}
SqlDataAdapter da = new SqlDataAdapter(cmd);
dt = new DataTable("Sale");
da.Fill(dt);
// totalSales(dt);
sqlBuilder.Clear();
cParameters.Clear();
dataGrid_Reports.ItemsSource = dt.DefaultView;
}
我从我的销售表中提取数据销售报表类型的功能。我正在寻求改进,使其更具可读性/有意义。正如你所看到的,我使用基于用户输入的参数构建SQL语句。这可能不是最好的办法。
下面是一个示例,说明结果在表单加载时如何显示我的SALES表。
+----------+-------------+-----------+--------------+--------------+--------
| date | Invoice ID | Name | Description | Sale Type | Amount
+--------- +-------------+-----------+--------------+--------------+--------
| 01/02/91 | 1 | Dean | Panado | Cash | 50
| 02/02/91 | 3 | Chris | Oralox | Cash | 60
| 03/02/91 | 5 | Peter | Zadin | Card | 99
| 05/02/91 | 6 | John | Illiadin | Medical Aid | 85
| 08/02/91 | 8 | Mike | Betamine | Cash | 129
+----------+-------------+-----------+--------------+--------------+--------+
结果将根据输入日期,patientID输入,医疗名称或销售类型进行“筛选”。
理想我想有这样的事情(patientID被链接到他们的名字):
Name InvoiceID Date Description Type of Sale Amount
John Doe 1 01/02/2009 Panado Cash 50
3 02/02/2009 Panado Cash 50
5 03/02/2009 Disprin Medical Aid 99
Sub-Total R199
对于每一个病人 - 再隆重,总在最后总结了所有的小计。
任何援助在这里绝对将不胜感激。谢谢。
请以格式文本分享样本数据。 – zarruq
@zarruq格式化文本?我的数据网格结果的屏幕截图会怎样? – user3605194
用纯文本编号数据库表“sale”和“patient”的样本数据。 – zarruq