通过本文主要向大家介绍了c#toshortdatestring,c#datetimepicker,c#把string转换成date,c#dategridview,c#date等相关知识,希望对您有所帮助,也希望大家支持linkedu.com www.linkedu.com
例子一，获取三小时前的记录
public static DataTable Query()
{
const string sSql = "select xh,lsh,name from table where gxsj>to_date(:gxsj,'yyyy-MM-dd HH24:mi:ss')";
OracleParameter[] parameters = {new OracleParameter(":gxsj", OracleType.VarChar, 10)};
parameters[0].Value = DateTime.Now.AddHours(-3).ToString("yyyy-MM-dd HH") + ":00:00";
return DBUtility.DbHelperOra.Query(sSql, parameters).Tables[0];
}
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例子二，获取大于当前时间的记录
public static string GetHphm(string sClsbdh)
{
const string sSql = "select name from table where sj>to_date(:yxsj,'yyyy-MM-dd')";
OracleParameter[] paramters = {new OracleParameter("sj", OracleType.VarChar, 10)};
paramters[0].Value = DateTime.Now.ToString("yyyy-MM-dd");
using (var mReader = DbHelperOra.ExecuteReader(sSql, paramters))
{
if (mReader.Read())
{
return mReader["name"].ToString();
}
}
return "";
}
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