The database server writes BYTE and TEXT values directly into the UNLOAD TO file. BYTE values are written in hexadecimal dump format with no added blank spaces or new line characters. The logical length of an UNLOAD TO file containing BYTE data can therefore be long and difficult to print or edit.
If you are unloading files that contain simple-large-object data types, do not use characters that can appear in BYTE or TEXT values as delimiters in the UNLOAD TO file. See also the section DELIMITER Clause.
The database server handles any required code-set conversions for TEXT data. For more information, see the IBM Informix GLS User's Guide.
If you are unloading files that contain simple-large-object data types, objects smaller than 10 kilobytes are stored temporarily in memory. You can adjust the 10-kilobyte setting to a larger setting with the DBBLOBBUF environment variable. BYTE or TEXT values larger than the default or the DBBLOBBUF setting are stored in a temporary file. For additional information about DBBLOBBUF, see the IBM Informix Guide to SQL: Reference.
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