ORA-00911: invalid character in C#, but not Oracle SQL Developer
Solution 1
At a minimum, you don't want the trailing semicolon in the SQL statement you send from C#.
I would strongly advocate as well that you use bind variables rather than concatenating together a string with your SQL statement. That will be more efficient, it will prevent shared pool related errors, it will make your DBA much happier, and it will protect you against SQL injection attacks.
Solution 2
Had the same problem, if anyone else is struggling with this issue try the following:
Remove the ";" from the sqlSentence String in Visual Studio. The ";" is just part of the Oracle DBmanager to separate sentences, it doesn't work out of there (it gets recognized as an invalid character)
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Comments
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Kurt Wagner over 1 year
I have a code line that's throwing an
Oracle Exception - ORA-00911: invalid character
when trying the following C# code:
double tempDateTimeObj = Convert.ToDouble(someClass.GetTime(tempObjID, objStartTime, todayTime).Rows[0][0]);
GetTime is a function that makes an SQL call that takes in the variables you see above, and the SQL call OUTs a Oracle number type and then the GetTime C# function returns a
DataTableCollection Tables
object of one row each time.public static DataTable GetTime(string tempObjID, DateTime objStartTime, DateTime todayTime) { string sql = "select some_pkg.get_time('" + tempObjID + "', to_date('" + objStartTime + "', 'mm/dd/yyyy hh:mi:ss am'), to_date('" + todayTime + "', 'mm/dd/yyyy hh:mi:ss am')) from dual;"; return <connection object>.getDS(sql).Tables[0]; }
If I debug, grab the sql string having values for the variables, and throw it into Oracle SQL Developer, it works just fine and returns a number in the SQL Dev console. However when I debug and come across that line, the C# code throws the 00911 exception. Since the string sql has been tested in Oracle SQL Dev, the syntax should be valid. Given valid syntax, why is VS2010 throwing this error/exception?
EDIT: Here is a sample string of what's being built in C# and sent to the DB:
select some_pkg.get_time('23569245', to_date('11/8/2012 1:21:06 PM', 'mm/dd/yyyy hh:mi:ss am'), to_date('12/31/2012 12:52:18 AM', 'mm/dd/yyyy hh:mi:ss am')) from dual
Having a semi-colon and not having semi-colon in the C# string have been tried and resulted in the same Oracle exception despite both working in Oracle SQL Dev
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Kurt Wagner over 10 yearsRemoved the ';' from the SQL statement sent by C# and still have the same exception message
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Justin Cave over 10 years@KurtWagner - Then the problem is in something that you're using to build up the string (this is one reason that using bind variables is so helpful). If you want to avoid using bind variables, you'll need to tell us exactly what string you are building. Can you print the SQL statement before executing it?
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Kurt Wagner over 10 yearsI've appended a sample string that's being sent using a real case.
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kristian mo over 6 yearsI had a similar issue, still not sure why this fixed it but I opened the file in notepad++ and converted to UTF-8 from UTF-8 BOM and now it works...
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saidfagan almost 6 yearsThanks, that helped me! By the way, that's very stupid design decision.