SQL*Loader-00304：Illegal combination of non-alphanumeric characters\n
错误码
错误描述：Illegal combination of non-alphanumeric characters\n
错误原因：The SQL*Loader control file contains a combination of non-alphanumeric characters that SQL*Loader does not recognize. For example, the combination != is recognized as "not equal", but the combination =! is not valid.
解决方法：Remove the unrecognized characters from the control file.
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