00309nam a2200121 a 450000500170000002000180001708200190003510000200005424500320007426000380010630000210014470000220016520251203111746.0  a9788131509692  a658.05574bPRA  aPratt, Philip J  aDatabase management systems  aNew DelhibCengage Learningc2009  a343p.c24cm.bPB  aAdamski, Joseph J