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construct a b-tree for the following set of key values 2,3,5,7,11,17,19,23,29,31.assume that the tree is initial empty and the values are added in ascending order
4. Describe three ways to handle missing field values
What is assertion? Mention the forms available. An assertion is a predicate expressing a condition that we wish the database always to satisfy. Domain integrity constraints.
Retrieve the S&S In-Chapter Database (in Microsoft Access format) from the text's Web site (or create the tables in Table 4-5 in a relational DBMS product). Write queries to answer
explain at least five widly used case tools
What are the three classes of SQL expression? SQL expression consists of three clauses: Select From Where
describe all the tables you have created. ?get table_name, status, num_rows, user_stats in user_tables system view ?get table_name, constraint_name, constraint_type in user_constr
Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
State the process of Rearranging Classes and Operations The various, yet similar operation of different classes can be slightly modified thus that they can be covered by a sin
WHY SHOULD NULL IN A RELATION BE AVOID AS possible?
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