protected void Page_Load(object sender, EventArgs e)
{
string sAdd = "186868";
string sTmp = "";
...
byte[] data = new byte[4];
System.Security.Cryptography.RandomNumberGenerator.Create().GetNonZeroBytes(data);
uint uRan = BitConverter.ToUInt32(data, 0).ToString();
1.一个月第一天的
SELECT DATEADD(mm, DATEDIFF(mm,0,getdate()), 0)
2.本周的星期一
SELECT DATEADD(wk, DATEDIFF(wk,0,getdate()), 0)
3.一年的第一天
SELECT DATEADD(yy, DATEDIFF(yy,0,getdate()), 0)
4.季度的第一天
SELECT DATEADD(qq, DATEDIFF(qq,0,getdate()), 0)
...