ORA-01461: can bind a LONG value only for insert into a LONG column-Occurs when querying

Question

When I try to query objects, I end up with following error:

ORA-01461: can bind a LONG value only for insert into a LONG column

Could someo

Answer 1

A collegue of me and I found out the following:

When we use the Microsoft .NET Oracle driver to connect to an oracle Database (System.Data.OracleClient.OracleConnection)

And we are trying to insert a string with a length between 2000 and 4000 characters into an CLOB or NCLOB field using a database-parameter

oraCommand.CommandText = "INSERT INTO MY_TABLE (NCLOB_COLUMN) VALUES (:PARAMETER1)";
// Add string-parameters with different lengths
// oraCommand.Parameters.Add("PARAMETER1", new string(' ', 1900)); // ok
oraCommand.Parameters.Add("PARAMETER1", new string(' ', 2500));  // Exception
//oraCommand.Parameters.Add("PARAMETER1", new string(' ', 4100)); // ok
oraCommand.ExecuteNonQuery();

• any string with a length under 2000 characters will not throw this exception
• any string with a length of more than 4000 characters will not throw this exception
• only strings with a length between 2000 and 4000 characters will throw this exception

We opened a ticket at microsoft for this bug many years ago, but it has still not been fixed.