Using OracleParameter with C# TimeSpan - Literal does not match

问题

I made an extensive search but I couldn't find any example about this.

I have a .NET variable of type TimeSpan and I need to put it into an IntervalDayToSecond record of an Oracle DB.

Referring to http://docs.oracle.com/html/B14164_01/featOraCommand.htm this page, it should be possible to pass a TimeSpan object as an OracleParameter and get it inserted into my Oracle DB in a record of IntervalDayToSecond type.

This is the code:

OracleParameter t = new OracleParameter("PAR_T", _msg.t);

I tried it in every way, also explicitly specifying the DBType (it shouldn't be necessary):

OracleParameter t = new OracleParameter("PAR_T", _msg.t);
taxi.OracleDbType = OracleDbType.IntervalDS;

I always get the same error from Oracle:

Devart.Data.Oracle.OracleException: ORA-01861: literal does not match format string

I can't understand how to make it work; I use dozens of parameters in this application (of type String, Integer, Date) and they all are working. On Google I can't find a single example of someone using c# TimeSpan as Parameter. Has anyone ever tried this?

回答1:

Ok, it was definitely my fault. Good old OracleParameter was doing his job nicely; the problem was elsewhere in the query.

So I hereby confirm that it is possible to bind a TimeSpan variable to an Oracle Interval Day To Second record.

string s = "00:20";
TimeSpan ts = TimeSpan.parse(s);
OracleParameter op = new OracleParameter("PAR_T", ts);

This creates a parameter named PAR_T which can be used in a query to insert a value into a Interval Day To Second record.

来源：https://stackoverflow.com/questions/14317721/using-oracleparameter-with-c-sharp-timespan-literal-does-not-match

标签

Oracle

binding

parameters