ORA-31460：logfile location string is not an existing directory
错误码
错误描述：logfile location string is not an existing directory
错误原因：The directory specification for logfile location for the change source, does not correspond with an existing directory, or the directory was not accessible.
解决方法：1. Create the directory if it does not exist. If the directory does exist, change the file system permissions so the directory can be accessed. OR 2. perform ALTER CHANGE SOURCE and change the logfile_location to be an existing directory that contains the logfiles
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