Get the information of codings.
getCodingTable()A data frame:
Code id
File id
Code name, in accordance with cid
File name, in accordance with fid
The number of characters in the coding
beginning index of a coding
end index of a coding
Codings are stored in the coding table of *.rqda file. The coding table contains necessary information, but not informative to end-users. For example, it has id of code list and file list, but not the name of them, which are stored in freecode table and source table respectively. GetCodingTable joins information from the three tables, and returns more informative data. See value section on the the returned components.