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Oracle 1Z1-082 Certification Exam includes a wide range of topics such as configuring Oracle databases, managing various components, including storage and recovery, database security, and ensuring high availability. It also covers database architecture, installation, and maintenance. Oracle Database Administration I certification exam is designed to assess your knowledge and understanding of the Oracle database administration concepts and your ability to apply these concepts in real-world scenarios.
NEW QUESTION # 32
The SCOTT/TIGER user exists in two databases, BOSTON_DB and DALLAS_DB, in two different locations.
Each database has a tnsnames.ora file defining DALLAS_DB as a service name.
Examine this command:
CREATE DATABASE LINK dblink1 CONNECT TO scott IDENTIFIED BY tiger USING 'dallas_db'; How do you execute the command so that only SCOTT in BOSTON_DB can access the SCOTT schema in DALLAS_DB?
- A. as SCOTT in BOSTON_DB and SYS in DALLAS_DB
- B. as SCOTT in DALLAS_DB
- C. as SCOTT in BOSTON_DB
- D. as SYS in both the databases
- E. as SCOTT in both the databases
Answer: D
NEW QUESTION # 33
Which three statements are true about a self join? (Choose three.)
- A. It must be an equijoin
- B. The query must use two different aliases for the table
- C. The ON clause must be used
- D. It must be an inner join
- E. It can be an outer join
- F. The ON clause can be used
Answer: B,D,F
Explanation:
Explanation
NEW QUESTION # 34
You want to use table compression suitable for OLTP that will:
Compress rows for all DML statements on that table
Minimize the overheads associated with compression
Which compression option is best suited for this?
- A. COLUMN STORE COMPRESS FOR ARCHIVE HIGH
- B. ROW STORE COMPRESS BASIC
- C. COLUMN STORE COMPRESS FOR QUERY LOW
- D. ROW STORE COMPRESS ADVANCED
- E. COLUMN STORE COMPRESS FOR ARCHIVE LOW
Answer: D
Explanation:
Reference:
https://www.oracle.com/technetwork/database/options/compression/advanced-compression-wp-12c-1896128.pdf
NEW QUESTION # 35
Examine the description of the PRODUCT_STATUS table:
The status column contains the values 'in stock' or 'out of stock' for each row.
Which two queries will execute successfully?
- A. SELECT prod_id q's not available" FROM product_status WHERE status = 'OUT OF STOCK*;
- B. SELECT prod_id Il q"'s not available" FROM product_status where status = 'OUT OF STOCK';
- C. SELECT prod_id II q'l's not available)' FROM product_status WHERE status = 'OUT OF STOCK';
- D. SELECT prod_id "CURRENT AVAILABILITY" II q'<'s not available)' FROM product_status WHERE status = 'OUT OF STOCK
- E. SELECT prod_id I I q' (*s not available)' "CURRENT AVAILABILITY" FROM product_status WHERE status = 'OUT OF STOCK
- F. SELECT prod_id I I q' ('s not available) * 'CURRENT AVAILABILITY' FROM product_status WHERE status = 'OUT OF STOCK
Answer: C,E
NEW QUESTION # 36
Examine the description of the CUSTOMERS table:
You want to display details of all customers who reside in cities starting with the letter D followed by at least two characters.
Which query can be used?
- A. SELECT * FROM customers WHERE city = 'D_%';
- B. SELECT * FROM customers WHERE city LIKE 'D_%';
- C. SELECT * FROM customers WHERE city LIKE 'D_';
- D. SELECT * FROM customers WHERE city = '%D_';
Answer: B
NEW QUESTION # 37
Which two are true about a SQL statement using SET operators such as UNION? (Choose two.)
- A. The number, but not names, of columns must be identical for all SELECT statements in the query.
- B. The data type group of each column returned by the second query must match the data type group of the corresponding column returned by the first query.
- C. The names and number of columns must be identical for all SELECT statements in the query.
- D. The data type of each column returned by the second query must be implicitly convertible to the data type of the corresponding column returned by the first query.
- E. The data type of each column returned by the second query must exactly match the data type of the corresponding column returned by the first query.
Answer: B,E
NEW QUESTION # 38
In the promotions table, the PROMO_BEGIN_DATE column is of data type date and the default date format Is DD-MON-RR.
h two statements are true about expressions using PROMO_BEGIN_DATE contained In a query?
- A. PROMO_ BEGIN_DATE - sysdate will return a number.
- B. PROMO_ BEGIN_DATE - sysdate will return an error.
- C. PROMO_ BEGIN_DATE - 5 will return a date.
- D. TO_date(PROMO_ BEGIN_DATE * 5| will return a date.
- E. to_numberipromo_begin_date) - s will return a number.
Answer: B,C
NEW QUESTION # 39
Table ORDER_ITEMS contains columns ORDER_ID, UNIT_PRICE and QUANTITY, of data type NUMBER.
Examine these SQL statements:
Statement 1:
SELECT MAX(unit_price * quantity) "Maximum Order"
FROM order_items;
Statement 2:
SELECT MAX(unit_price * quantity) "Maximum Order"
FROM order_items
GROUP BY order_id;
Which two statements are true?
- A. Statement 2 returns only one row of output.
- B. Statement 1 returns only one row of output.
- C. Both statements will return NULL if either UNIT_PRICE or QUANTITY contains NULL.
- D. Statement 2 may return multiple rows of output.
- E. Both the statements give the same output.
Answer: B,D
Explanation:
https://docs.oracle.com/javadb/10.8.3.0/ref/rrefsqlj27781.html
The Expression can contain multiple column references or expressions, but it cannot contain another aggregate or subquery. It must evaluate to a built-in data type. You can therefore call methods that evaluate to built-in data types. (For example, a method that returns a java.lang.Integer or int evaluates to an INTEGER.) If an expression evaluates to NULL, the aggregate skips that value.
NEW QUESTION # 40
Examine the description of the BOOKS table:
The table has 100 rows.
Examine this sequence of statements issued in a new session:
INSERT INTO books VALUES ('ADV112', 'Adventures of Tom Sawyer', NULL, NULL); SAVEPOINT a; DELETE FROM books; ROLLBACK TO SAVEPOINT a; ROLLBACK; Which two statements are true? (Choose two.)
- A. The second ROLLBACK command does nothing
- B. The first ROLLBACK command restores the 101 rows that were deleted, leaving the inserted row still to be committed
- C. The second ROLLBACK command replays the delete
- D. The second ROLLBACK command undoes the insert
- E. The first ROLLBACK command restores the 101 rows that were deleted and commits the inserted row
Answer: B,D
NEW QUESTION # 41
Which three statements are true about roles?
- A. Roles may be granted to roles.
- B. The SET ROLE statement can disable one or more roles for a session.
- C. Roles must be password protected.
- D. All roles granted to a user are set on by default when the user logs in,
- E. The SET ROLE statement can enable one or more roles for a session.
- F. Object privileges may not be granted to roles.
Answer: A,B,F
NEW QUESTION # 42
Which two statements are true about single row functions? (Choose two.)
- A. FLOOR : returns the smallest integer greater than or equal to a specified number
- B. CONCAT : can be used to combine any number of values
- C. TRUNC : can be used with NUMBER and DATE values
- D. MOD : returns the quotient of a division operation
- E. CEIL : can be used for positive and negative numbers
Answer: C,D
Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/Single-Row- Functions.html#GUID-B93F789D-B486-49FF-B0CD-0C6181C5D85C
NEW QUESTION # 43
Which three statements are true about views in an Oracle database? (Choose three.)
- A. The WITH CHECK clause prevents certain rows from being updated or inserted
- B. Tables in the defining query of a view must always exist in order to create the view
- C. The WITH CHECK clause prevents certain rows from being displayed when querying the view
- D. Views can be updated without the need to re-grant privileges on the view
- E. Deleting one or more rows using a view whose defining query contains a GROUP BY clause will cause an error
- F. Inserting one or more rows using a view whose defining query contains a GROUP BY clause will cause an error
- G. Data Manipulation Language (DML) can always be used on views
Answer: B,F,G
NEW QUESTION # 44
Which three files are used by conventional path SQL*Loader when the TABLE option is not specified? (Choose three.)
- A. password files
- B. bad files
- C. control files
- D. input files
- E. dump files
Answer: B,C,D
NEW QUESTION # 45
In one of your databases, user KING is:
1. Not a DBA user
2. An operating system (OS) user
Examine this command and its output:
What must you do so that KING is authenticated by the OS when connecting to the database instance?
- A. Grant DBA to KING
- B. Unset REMOTE_LOGIN_PASSWORDFILE
- C. Have the OS administrator add KING to the OSDBA group
- D. Alter user KING to be IDENTIFIED EXTERNALLY
- E. Set OS_AUTHENT_PREFIX to OPS$
Answer: E
Explanation:
https://oracle-base.com/articles/misc/os-authentication
NEW QUESTION # 46
Which three statements are true about a self-join? (Choose three.)
- A. The query must use two different aliases for the table
- B. The ON clause must be used
- C. It must be an inner join
- D. It can be an outer join
- E. The ON clause can be used
- F. It must be an equi join
Answer: A,C,E
NEW QUESTION # 47
A database is configured to use automatic undo management with temporary undo enabled.
An UPDATE is executed on a temporary table.
Where is the UNDO stored?
- A. in the SGA
- B. in the temporary tablespace
- C. in the SYSAUX tablespace
- D. in the PGA
- E. in the undo tablespace
Answer: B
Explanation:
http://www.dba-oracle.com/t_temp_undo_enabled.htm
NEW QUESTION # 48
Which statement is true about the INTERSECT operator used in compound queries?
- A. It processes NULLs in the selected columns
- B. INTERSECT is of lower precedence than UNION or UNION ALL
- C. Multiple INTERSECT operators are not possible in the same SQL statement
- D. It ignores NULLs
Answer: A
NEW QUESTION # 49
The INVOICE table has a QTY_SOLD column of data type NUMBER and an INVOICE_DATE column of data type DATE.
NLS_DATE_FORMAT is set to DD-MON-RR.
Which two are true about data type conversions involving these columns in query expressions? (Choose two.)
- A. qty_sold = '0554982' uses implicit conversion
- B. qty_sold BETWEEN '101' AND '110' : uses implicit conversion
- C. CONCAT (qty_sold, invoice_date) : requires explicit conversion
- D. invoice_date = '15-march-2019' : uses implicit conversion
- E. invoie_date > '01-02-2019' : uses implicit conversion
Answer: B,D
NEW QUESTION # 50
The sales table has columns prod_id and quantity_sold of data type number In two queries execute successfully?
- A. SELECT prod_id FROM sales WHERE quantity_scld > 55000 AND COUNT(-) > 10 GROUP BY COUNT(-) > 10;
- B. SELECT prod_id FROM sales WHERE quantity_sold > 55000 GROUP BY prod_id HAVING COUNT(-) > 10;
- C. SELECT COUNT|prod_id> FROM sales WHERE quantity_sold > 55000 GROUP BY prod_id;
- D. SELECT COUNTlprod_id> FROM sales GROUP BY prod_id WHERE quantity_Sold > 55000;
- E. SELECT prod_id FROM sales WHERE quantity_sold > 5S000 AND COUNT(-) > 10 GROUP BY prod_id HAVING COUNT(-) > 10;
Answer: B,C
NEW QUESTION # 51
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