1 which model is used to store data in tree
1. Which model is used to store data in tree structures
Ans: Hierarchical model is used to store data in tree structures
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explain the term step-wise refinementans step wise refinement refinement is a method of elaboration here one starts with a statement of
define an operator that a relational algebra does not haveans relational algebra does not have aggregation
1 determine that the checkpoints are a part of ans checkpoints are a part of recovery
how can we change almost any algorithm to have a good best case running timecheck whether the input constitutes an input at the very startingor else
1 which model is used to store data in tree structuresans hierarchical model is used to store data in tree
determine the language that needs a user to specify the data to be retrieved with no specifying exactly how to get it isans non-procedural
how is recursion handled internallyinternally every recursive call to a function requires storing the intermediate values of the parameters and local
q how to left shifts and right shifts a graphanswhen youre translating shifting a graph its easy to get subtracting and adding mixed up it seems
determine the rule that a value of a foreign key should appear as a value of some particular table is called a ans referential constraint
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