Add date parameter to oracle query
20,515
I didn't find a way to do it using Varchar2 Datatype. So, I'm giving the answer using Date Datatype.
if (dateTo.Minute > 30)
minToInt = 30;
else
minToInt = 00;
dateFrom = DateTime.Now;
dateTo = DateTime.Now;
DateTime dateFrom = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, dateFrom.Hour, 00, 00);
DateTime dateTo = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, dateTo.Hour, minToInt, 00);
////////FROM DATE/////////
OracleParameter fromDateParameter = new OracleParameter();
fromDateParameter.OracleDbType = OracleDbType.Date;
fromDateParameter.Value = dateFrom;
////////TO DATE/////////
OracleParameter toDateParameter = new OracleParameter();
toDateParameter.OracleDbType = OracleDbType.Date;
toDateParameter.Value = dateTo;
this.oracleDataAdapter4.SelectCommand = new OracleCommand("
SELECT DISTINCT (LOG.RID) FROM LOG WHERE LOG.TIMESTAMP
BETWEEN :fromDateParameter
AND :toDateParameter)", oracleConnection4);
oracleDataAdapter4.SelectCommand.Parameters.Add(fromDateParameter);
oracleDataAdapter4.SelectCommand.Parameters.Add(toDateParameter);
this.oracleDataAdapter4.Fill(event11);
Don't get confuse with the if/else minute validation, it is just for my query purpose.
Author by
BrOSs
Updated on October 08, 2020Comments
-
BrOSs over 3 years
What I'm trying to do is to execute the query between two dates, and the dates would come from a parameter.
In the below code, I'm putting one parameter and letting the second date as fixed just for example purposes.
The code / query is kind of long to paste it here, but here is a short version:
OracleParameter fromDateParameter = new OracleParameter(); fromDateParameter.OracleDbType = OracleDbType.Varchar2; fromDateParameter.Value = "'3/06/2013 20:00:00'"; this.oracleDataAdapter4.SelectCommand = new OracleCommand(" SELECT DISTINCT (LOG.RID) FROM LOG WHERE LOG.TIMESTAMP BETWEEN TO_DATE(:fromDateParameter, 'MM/DD/YYYY hh24:mi:ss ') AND TO_DATE('3/06/2013 23:59:00', 'MM/DD/YYYY hh24:mi:ss '))", oracleConnection4); oracleDataAdapter4.SelectCommand.Parameters.Add(fromDateParameter); this.oracleDataAdapter4.Fill(event11);
And I got this message:
ORA-01858: a non-numeric character was found where a numeric was expected
I did the same query without the parameter and it works just fine.
Thanks