Is order of parameters for database Command object really important?

Question

I was debugging a database operation code and I found that proper UPDATE was never happening though the code never failed as such. This is the code:

Answer 1

The order is important because of the use of ? placeholders in the command string.

If you want to list the parameters in any order, it's best to use named parameters, such as @word, @sentence, etc.

condb.Open();
OleDbCommand dbcom = new OleDbCommand("UPDATE Word SET word=@word,sentence=@sentence,mp3=@mp3 WHERE id=@id AND exercise_id=@exercise_id", condb);
dbcom.Parameters.AddWithValue("@id", wd.ID);
dbcom.Parameters.AddWithValue("@exercise_id", wd.ExID);
dbcom.Parameters.AddWithValue("@word", wd.Name);
dbcom.Parameters.AddWithValue("@sentence", wd.Sentence);
dbcom.Parameters.AddWithValue("@mp3", wd.Mp3);