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Which of the following is not a level of data abstraction?
Which of the following is not an Schema?
Which of the following is a Data Model?
Logical design of database is called
Snapshot of the dta in the database at a given instant of time is called
Which of the following is the structure of the Database?
A logical description of some portion of database that is required by a user to perform task is called as
_____________ is a classical approach to database design?
Which of the following is the oldest database model?
Which of the following indicates the maximum number of entities that can be involved in a relationship?
Which of the following data constraints would be used to specify that the value of cells in a column must be one of a specific set of possible values?
In a 1:N relationship, the foreign key is placed in:
Which of the following column properties specifies whether or not cells in a column must contain a data value?
A primary key should be defined as:
Which of the following column properties would be used to specify that cells in a column must contain a monetary value?
If a denormalization situation exists with a one-to-one binary relationship, which of the following is true?
Selecting a data type involves which of the following?
What is the best data type definition for Oracle when a field is alphanumeric and has a length that can vary?
A multidimensional database model is used most often in which of the following models?
Which of the following is not a factor to consider when switching from small to large block size?
total questions: 181

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