Hola Itzcoatl:
Te recomiendo el libro:
The Practical SQL Handbook, detalles en:
http://cseng.aw.com/bookdetail.qry?ISBN=0%2D201%2D44787%2D8&ptype=0
Saludos,
Roberto
http://tlali.iztacala.unam.mx/~randrade
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