how to write date between query

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SQL-Server-2008R2

i want to sum column values between two dates.
the two date values are coming from asp calender.
how to write sql query and display result in textbox.
for eexample:

VB

query="select sum(column names) from tablename where date between calender1 and calender2"

Posted 28-Feb-15 1:38am

batman56

Updated 28-Feb-15 6:50am

Maciej Los

v2

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[no name] 28-Feb-15 8:10am

And now please explain where is the problem?

batman56 28-Feb-15 8:12am

calender date format and date format in database table is not matching.
i using date as datatype in my DB.

[no name] 28-Feb-15 8:18am

ok, this is out of my scope but I think you will get an answer soon here.
Bruno

batman56 28-Feb-15 8:20am

ok.
thank you.

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Peter Leow · Accepted Answer · 2015-02-28T03:03:00

Just pass the Calendar1.SelectedDate which is a DateTime value to the sql query, but use parameterized query to prevent Preventing SQL Injection Attack ASP.NET - Part I[^]
The code snippet:

DateTime startDate = Calendar1.SelectedDate;
DateTime endtDate = Calendar2.SelectedDate;
string commandText = "select sum(column) from tablename where datecolumn between @startDate and @enddate";
using (SqlConnection connection = new SqlConnection(connectionString))
{
	SqlCommand command = new SqlCommand(commandText, connection);
	command.Parameters.AddWithValue("@startDate", startDate);
	command.Parameters.AddWithValue("@endDate", endDate);
        Int32 sum = (Int32) command.ExecuteScalar();
        Textbox1.Text = sum.ToString();
}

Refer:
1. Calendar.SelectedDate Property[^]
2. SqlCommand.Parameters Property[^]