Oralce 1Z0-007 study material

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Oracle 1Z0-007 Introduction to Oracle9i SQL Exam Topics
Manipulating Data
Describe each DML statement
Insert rows into a table
Update rows in a table
Delete rows from a table
Merge rows in a table
Control transactions
Creating and Managing Tables
Describe the main database objects
Create tables
Describe the datatypes that can be used when specifying column definition
Alter table definitions
Drop, rename and truncate tables
Oracle Introduction to Oracle9i SQL® 1z0-007
Exam Number/Code : 1z0-007
Exam Name : Introduction to Oracle9i SQL®
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Questions and Answers : 156Q&As
Update Time : 2012-12-16
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16. Which two statements are true about constraints? (Choose two.)
A.The UNIQUE constraint does not permit a null value for the column.
B.A UNIQUE index gets created for columns with PRIMARY KEY and UNIQUE constraints.
C.The PRIMARY KEY and FOREIGN KEY constraints create a UNIQUE index.
D.The NOT NULL constraint ensures that null values are not permitted for the column.
Answer: BD
17. Which three statements correctly describe the functions and use of constraints? (Choose three.)
A.Constraints provide data independence.
B.Constraints make complex queries easy.
C.Constraints enforce rules at the view level.
D.Constraints enforce rules at the table level.
E.Constraints prevent the deletion of a table if there are dependencies.
F.Constraints prevent the deletion of an index if there are dependencies.
Answer: CDE
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