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Oracle Database SQL Expert 1z0-047
Exam Number/Code : 1z0-047
Exam Name : Oracle Database SQL Expert
Questions and Answers : 158Q&As
Update Time : 2012-3-1
Price : $89.00
The 1Z0-047 exam is an elective for the OCA 11g, Oracle Database: SQL Certified Expert, Oracle9i DBA OCA and Oracle PL/SQL Developer Certified Associate certifications. The Oracle certification Database SQL Expert exam is appropriate for you if you have experience in Oracle Databases and want to work as a Database Developer.
View the Exhibit and examine the structure of the EMP table which is not partitioned and not an
indexorganized table. Evaluate the following SQL statement: ALTER TABLE emp DROP COLUMN
first_name Which two statements are true regarding the above command? (Choose two.)
A.The FIRST_NAME column would be dropped provided it does not contain any data.
B.The FIRST_NAME column would be dropped provided at least one or more columns remain in the table.
C.The FIRST_NAME column can be rolled back provided the SET UNUSED option is added to the above
D.The FIRST_NAME column can be dropped even if it is part of a composite PRIMARY KEY provided the
CASCADE option is used.
Which two statements are true? (Choose two.)
A.The USER_SYNONYMS view can provide information about private synonyms.
B.The user SYSTEM owns all the base tables and useraccessible views of the data dictionary.
C.All the dynamic performance views prefixed with V$ are accessible to all the database users.
D.The USER_OBJECTS view can provide information about the tables and views created by the user
E.DICTIONARY is a view that contains the names of all the data dictionary views that the user can access.
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