1z0-047 study material

Free 1z0-047 Demo Download

Just4braindumps.info offers free demo for Other Oracle Certification 1z0-047 exam (Oracle Database SQL Expert). You can check out the interface, question quality and usability of our practice exams before you decide to buy it. We are the only one site can offer demo for almost all products.

1z0-047 study material

1z0-047 Exam Description

It is well known that latest 1z0-047 exam test is the hot exam of Oracle certification. Just4braindumps.info offer you all the Q&A of the 1z0-047 real test . It is the examination of the perfect combination and it will help you pass 1z0-047 exam at the first time!

　
　
Exam : Oracle 1Z0-047
Title : Oracle Database SQL Expert


1. Evaluate the CREATE TABLE statement:
CREATE TABLE products
(product_id NUMBER(6) CONSTRAINT prod_id_pk PRIMARY KEY,
product_name VARCHAR2(15));
Which statement is true regarding the PROD_ID_PK constraint?
A. It would be created only if a unique index is manually created first.
B. It would be created and would use an automatically created unique index.
C. It would be created and would use an automatically created nonunique index.
D. It would be created and remains in a disabled state because no index is specified in the command.
Answer: B

2. 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 user-accessible 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 only.
E. DICTIONARY is a view that contains the names of all the data dictionary views that the user can access.
Answer: AE

3. View the Exhibit and examine the structure of the EMP table which is not partitioned and not an index-organized 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 SQL statement.
D. The FIRST_NAME column can be dropped even if it is part of a composite PRIMARY KEY provided the CASCADE option is used.
Answer: BD

4. Which three tasks can be performed using regular expression support in Oracle Database 10g? (Choose three.)
A. It can be used to concatenate two strings.
B. It can be used to find out the total length of the string.
C. It can be used for string manipulation and searching operations.
D. It can be used to format the output for a column or expression having string data.
E. It can be used to find and replace operations for a column or expression having string data.
Answer: CDE

5. You need to load information about new customers from the NEW_CUST table into the tables CUST and CUST_SPECIAL. If a new customer has a credit limit greater than 10,000, then the details have to be inserted into CUST_SPECIAL. All new customer details have to be inserted into the CUST table. Which technique should be used to load the data most efficiently?
A. external table
B. the MERGE command
C. the multitable INSERT command
D. INSERT using WITH CHECK OPTION
Answer: C

6. View the Exhibit and examine the description of the CUSTOMERS table.
You want to add a constraint on the CUST_FIRST_NAME column of the CUSTOMERS table so that the value inserted in the column does not have numbers.
Which SQL statement would you use to accomplish the task?
A. ALTER TABLE CUSTOMERS
ADD CONSTRAINT cust_f_name
CHECK(REGEXP_LIKE(cust_first_name,'^A-Z'))NOVALIDATE ;
B. ALTER TABLE CUSTOMERS
ADD CONSTRAINT cust_f_name
CHECK(REGEXP_LIKE(cust_first_name,'^[0-9]'))NOVALIDATE ;
C. ALTER TABLE CUSTOMERS
ADD CONSTRAINT cust_f_name
CHECK(REGEXP_LIKE(cust_first_name,'[[:alpha:]]'))NOVALIDATE ;
D. ALTER TABLE CUSTOMERS
ADD CONSTRAINT cust_f_name
CHECK(REGEXP_LIKE(cust_first_name,'[[:digit:]]'))NOVALIDATE ;
Answer: C