In this blog post, you’ll learn more about the Sybase Error Only BINARY [WITH NULL BYTE] can be used as a column specification when using UNLOAD FORMAT. %1 and the reason for receiving this error
Sybase SQL Error Message
Only BINARY [WITH NULL BYTE] can be used as a column specification when using UNLOAD FORMAT. %1
Reason for this Error
When using UNLOAD FORMAT, you cannot specify any column specification other than BINARY. If need to load null values for a column using the BINARY column spec, you must specify the WITH NULL BYTE option. You cannot use the [ROW] DELIMITED BY options with UNLOAD FORMAT.