C# parameterized queries for Oracle - serious & dangerous bug!

Question

This is an absolute howler. I cannot believe my own eyes, and I cannot believe nobody before me would have discovered this if it was a genuine bug in C#, so I\'m putting it

Answer 1

p.Add(":Column1", 1);
p.Add(":Column2", "record 1");
p.Add(":Column3", null);

//NOTE i have added : to the parameter names to be recognised by oracle data client