README

Import the USDA National Nutrient Database for Standard Reference into a Sqlite3 database. Tested on ruby 1.9.2.

Instructions

1. Download and the ASCII version of the SR23 database from the Nutrient Data Laboratory Home Page. There is a 7.6 Mb ZIP file containing the entire database.

2. Extract the database into this project's top-level directory. It will create a subdirectory called 'sr23' and should look like:

    sr23/Data_src.pdf
    sr23/DATA_SRC.txt
    sr23/DATSRCLN.txt
    sr23/DERIV_CD.txt
    sr23/FD_GROUP.txt
    sr23/FOOD_DES.txt
    sr23/FOOTNOTE.txt
    sr23/LANGDESC.txt
    sr23/LANGUAL.txt
    sr23/NUT_DATA.txt
    sr23/NUTR_DEF.txt
    sr23/sr23_doc.pdf
    sr23/SRC_CD.txt
    sr23/WEIGHT.txt
   

3. Requires bundler. Run bundle install to install required gems if needed.

4. Run rake load to create database and, optionally, rake pivot to create a flattened table with nutrient values (pivot task requires fts4 extensions to Sqlite).