'mg 'fat 'magnesium as of dm'fat as of dm the table in sect contains subset of the records in the feedattribtype tableavailable as feedattribtype tbl on the text website the full table has different rows each containing fields as with the feed tablethe feedattribtype table is organized into rows and columns subset of the feedattribute table is provided in sect each feed attribute is comprised of the corresponding feedidthe feedattribtypeidand the amount of that nutrient for the given feed which is called the value column within the table the feedattribute table storing the feed data this way is flexible new nutrients can easily be added feeds can be added as well feed attributes can be stored if available or omitted occasionallyprograms that use relational databases need access to data from more than one table but need to correlate the data between the tables for instanceit may be convenient to temporarily construct table that contains the feed numberfeed namenutrient nameand value of that nutrient for the corresponding feed into table like that in sect we may want to compute the average phosphorous content within all feeds in factwe may wish to calculate the average content for each nutrient type within the database in that case table like the one in sect would be very useful temporary table corn silag corn silag ca corn silag rfv corn silag this copy belongs to 'acha