What symbol is used in the Alteryx input data tool to indicate "no delimiter"?

The symbol that indicates "no delimiter" in the Alteryx input data tool is represented by \0. This is an escape sequence that commonly represents the null character in programming and data processing contexts, signifying the absence of a delimiter. When specified, it instructs the tool to treat the entire record as a single piece of data without breaking it into segments.

Understanding delimiters is crucial when working with data input; specifying no delimiter ensures that the data is read in its entirety, which can be essential for accurate processing in certain workflows. This is especially relevant when dealing with data formats where splitting on specific characters isn't desired or necessary.

Other options like NULL, EMPTY, and NONE may suggest the absence of a value or indicate that there are no actual characters, but they do not use the specific escape sequence \0 to signify the absence of a delimiter in Alteryx. Thus, \0 is the correct representation for "no delimiter."