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[英]How to calculate the difference between times and store the result in a mySQL database (VB.NET)?
[英]VB.net MYSQL - Count Seconds in Database between 2 times
您好,我在vb.net上遇到了一些問題,不確定該朝哪個方向前進。
該程序的前端用於計算某個進程的特定停機時間的秒數。
數據庫具有下表和示例數據:
狀態| 開始日期| 停止日期| 秒
正在運行27/08/2012 11:10:11 27/08/2012 11:10:22 11
在后端,所有我想做的事情是使用日期選擇器為日期填充秒數總和,當執行查詢時,我使用日期選擇器文本並在其末尾添加時間,以免出現意外沒有用,它也只考慮開始日期,而不考慮停止日期,因為我試圖在該時間范圍內累加,並且我希望有人可以提供幫助,這是我在下面嘗試的代碼:
Dim DTimePicker1 = DateTimePicker1.text & " 11:00:00"
Dim DTimePicker2 = DateTimePicker1.text & " 12:00:00"
cmd.Parameters.Clear()
cmd.CommandText = "SELECT SUM(seconds) FROM sqlccmlinestatus WHERE status = 'Running' and startdate BETWEEN @BEG AND @END"
cmd.Parameters.AddWithValue("@BEG", DTimePicker1)
cmd.Parameters.AddWithValue("@END", DTimePicker1)
Label70.Text = cmd.ExecuteScalar()
任何幫助都會很棒。
非常感謝,皮特
Dim D1 as Date = DateTimePicker1.Value
Dim D2 as Date = DateTimePicker2.Value
Dim DTimePicker1 as new Date(D1.Year, D1.Month, D1.Day, 11, 0, 0)
Dim DTimePicker2 as new Date(D2.Year, D2.Month, D2.Day, 12, 0, 0)
cmd.Parameters.Clear()
cmd.CommandText = "SELECT SUM(seconds) FROM sqlccmlinestatus WHERE status = 'Running' and startdate BETWEEN @BEG AND @END"
cmd.Parameters.AddWithValue("@BEG", DTimePicker1.ToString("yyyy-MM-dd HH:mm:ss.fff"))
cmd.Parameters.AddWithValue("@END", DTimePicker2.ToString("yyyy-MM-dd HH:mm:ss.fff"))
Label70.Text = cmd.ExecuteScalar()
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