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You Are On Multi Choice Question Bank SET 930

46501. A bitmap index is an index on columns from two or more tables that come from the same domain of values.



46502. When storage space is scarce and physical records cannot span pages, creating multiple physical records from one logical relation will minimize wasted storage space.



46503. A field represents each component of a composite attribute.



46504. Some advantages of partitioning include: efficiency, security, and load balancing.



46505. A pointer is a detailed coding scheme recognized by system software for representing organizational data.



46506. Distributing the columns of a table into several separate physical records is known as horizontal partitioning.



46507. An extent is a contiguous section of disk storage space.



46508. The three newest database architectures in use today are relational, multidimensional and hierarchical.



46509. Data-volume and frequency-of-use statistics are not critical inputs to the physical database design process.



46510. In general, larger block sizes are used for online transaction processing applications and smaller block sizes are used for databases with a decision support or data warehousing system.



46511. It is usually not very important to design the physical database to minimize the time required by users to interact with the information systems.



46512. If a denormalization situation exists with a one-to-one binary relationship, which of the following is true?





46513. Selecting a data type involves which of the following?





46514. What is the best data type definition for Oracle when a field is alphanumeric and has a length that can vary?





46515. If a denormalization situation exists with a many-to-many or associative binary relationship, which of the following is true?





46516. Which of the following is an advantage of partitioning?





46517. Who was the Prime Minister of India,When Panchaseel was adopted?





46518. According to 2011 census the sex ratio is highest in





46519. The latitude passing through the centre of India





46520. Sri Lanka is separated from India by





46521. The shape of the Deccan Plateau





46522. To update an SQL view, the DBMS must be able to associate the column(s) to be updated with:





46523. Which of the following is NOT a type of SQL constraint?





46524. A ________ is a program that performs some common action on database data and that is stored in the database.





46525. For what purposes are views used?





46526. What is an SQL virtual table that is constructed from other tables?





46527. When using the SQL INSERT statement:





46528. What is not an advantage of stored procedures?





46529. A reason for using an SQL view to hide columns is:





46530. Which of the following is an SQL trigger supported by Oracle?





46531. The SQL ALTER statement can be used to:





46532. What SQL structure is used to limit column values of a table?





46533. Which is NOT one of the most common types of SQL CHECK constraints?





46534. What is an advantage of placing computations in SQL views?





46535. Views constructed from SQL SELECT statements that conform to the SQL-92 standard may not contain:





46536. The SQL statement used to create a view is CREATE VIEW.



46537. The SQL MAKE TABLE command is used to construct tables, define columns, define column constraints and create relationships.



46538. SQL has a JOIN ON syntax that can be used to create inner joins and outer joins.



46539. Standard SQL-92 views are constructed from SQL SELECT statements that do not contain the GROUP BY clause.



46540. The SQL CHECK constraint is fully defined by the SQL-92 standard, and is consistently implemented by all DBMS vendors.



46541. SQL Server does not support the BEFORE trigger.



46542. A updatable view has its own data.



46543. The SQL DELETE statement is used to delete both the table structure and table data.



46544. Common types of SQL CHECK constraints include range checks and limiting columns values.



46545. If any required (NOT NULL) columns are missing from the view, the view cannot be used for inserting new data.



46546. When a foreign key column is created without a corresponding foreign key constraint, we have created a "casual relationship" between the two tables.



46547. Views can be used to show the results of computed columns.



46548. A benefit of using a stored procedure is that it can be distributed to client computers.



46549. A trigger is a stored program that is attached to a database.



46550. A stored procedure is a program that performs some common action on database data and is stored in the database.



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