Ora-01460: conversion request cannot be implemented or unreasonable

Catalog

Preface ：

One 、 Problem analysis

The phenomenon ：

analysis ：

Two 、 summary

Preface ：

         Under what conditions will this problem occur ？ I collect relevant information , It probably includes these kinds .

        1、 Maximum field length exceeded , When the length of the input value exceeds oracle Maximum length 4000 When it comes to .

        2、 Drive mismatch problem , Such as upgrading oracle Version from 9i Production to 10 perhaps 11 High version of the ,JDBC The version of has not been upgraded .

        3、 The problem of character set mismatch .

         The probabilities of these three categories are the first 80%, The second kind 、 The third kind accounts for each 10% about . But the problem this time is caused by the company's encryption software . If you are interested , Let's take a look down .

One 、 Problem analysis

The phenomenon ：

analysis ：

         In terms of reporting errors , The wrong line is displayed , That is, there is a super 4000 Number of lines in bytes . So I opened the original file , Ha ha ha , A lot of crap . It turned out to be generated automatically CSV Edited and saved by colleagues , Cause to be encrypted , It's all a pile of garbled code . direct BBQ 了 . Ha ha ha ha ha ha ha .

 

Two 、 summary

         Generally, companies will be in PC Install encryption software on computers and servers . If it is software developed later , It is suggested to add a standardized interface to deal with these embarrassing things . If one day you encounter this kind of error , Take a look at my article , Maybe it will help you a little .