3 ms·
http://en.wikipedia.org/wiki/Database_normalization#Non-first_normal_form_.28NF.C2.B2_or_N1NF.29 http://en.wikipedia.org/wiki/Database_normalization#Non-firs...
by zimbu668 12y ago
http://en.wikipedia.org/wiki/Database_normalization#Non-first_normal_form_.28NF.C2.B2_or_N1NF.29 http://en.wikipedia.org/wiki/Database_normalization#Non-firs...