非法尝试使用Text/Byte主机变量-插入TEXT列 [英] Illegal attempt to use Text/Byte host variable - Inserting into TEXT column

问题描述

尝试通过Dapper插入表(文本列")，并从Informix获取错误:

Trying to insert into a table (Text Column) via Dapper, and getting the error from Informix:

Illegal attempt to use Text/Byte host variable

我已经编写了一个小程序来对此进行模拟，但是我仍然遇到问题.

I have written a small program to simulate this, and I am still up against problems.

我们当前无法使用Informix驱动程序，因为它们不符合我们的需求.

We cannot currently use the Informix drivers, as they do not suit our needs.

using Dapper;
using System;
using System.Data.Odbc;
namespace DapperParamsTest
{
    class Program
    {
        static void Main(string[] args)
        {
            OdbcConnection conn = new System.Data.Odbc.OdbcConnection("Driver={IBM INFORMIX ODBC DRIVER (64-bit)}; Host=bylgia; Server=bylgia; Service=sqlexec; Protocol=onsoctcp; Database=DATABASE; Client_Locale=en_US.CP1252; DB_LOCALE=en_GB.1252");

            var dynParams = new DynamicParameters();

            dynParams.Add("np_c_ref",-1);
            dynParams.Add("np_np_type","T");
            dynParams.Add("np_text", System.Text.Encoding.Default.GetBytes("TEXT INPUT"), System.Data.DbType.Binary);

            conn.Execute("INSERT INTO notepads (np_c_ref, np_type,np_text) VALUES (?,?,?)",dynParams);

            Console.WriteLine("Written");
            Console.ReadLine();
        }
    }
}

表结构:

CREATE TABLE notepad
(
    np_c_ref int,
    np_type char(1),
    np_text TEXT
)

推荐答案

实际上，这个问题可能比我的其他答案要简单得多.我刚刚注意到您说该列为TEXT，但您正在向其传递byte[].如果需要，您可能应该使用BYTE数据类型.如果您想使用TEXT-只需将string(即"TEXT INPUT")传递给它，而忘记Encoding.

This question might actually be a lot simpler than my other answer presumes; I've just noticed you say the column is TEXT, yet you are passing it a byte[]. If you want that, you should probably be using the BYTE data type. If you want to use TEXT - just pass it the string (i.e. "TEXT INPUT") and forget about Encoding.

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