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strings in java string handling in java string hadling history of india india from 1961-present india after independence how hadoop works hadoop what is hadoop dda in computer graphics what is dda line algorithms in cg what are the animal rights what are the animal cruelty and animal right what is agile methodology airtel zero how airtel zero work what is airtel zero "data communication devices" the network model allows a record to have more tha unlike the hierarchical model what is data model? a data model is a collection the user perceives the network database as a colle it does not represent m:n relationships. for examp in which some entities can be accessed through sev as in the hierarchical model to improve database performance the top layer (the root) is perceived as the paren primary keys and other information. data models: h and to impose a database standard. or we can say t relationships and constraints that should apply on