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QUESTION 1
Given the following class declarations:
1.

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QUESTION 1
In your schema, the DEPARTMENTS table contains the columnsDEPARTMENT_ID and DEPARTMENT_NAME.

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QUESTION 1
Which two statements are true about the INSTEAD OF triggers? (Choose two.)
A. DELETE operations cannot be performed using the INSTEAD OF triggers.

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QUESTION 1
Which three methods can be used for heap table data migration after upgrading a database? (Choose three.)
A. using Database Replay
B. using SQL Developer
C. using Oracle Data Pump
D. using operating system file copy utilities
E. using Database Upgrade Assistant
F. using the CREATE TABLE AS SELECT SQL statement
Correct Answer: DEF

 

QUESTION 2
Which three are true about requirements for various FLASHBACK operations? (Choose three.)
A. FLASHBACK transaction query requires to undo to retrieve all versions of a row that existed between two points in
time.

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QUESTION 1
Which two statements are true regarding the UNION and UNION ALL operators? (Choose two.)
A. Duplicates are eliminated automatically by the UNION ALL operator
B. The number of columns selected in each SELECT statement must be identical
C. The names of columns selected in each SELECT statement must be identical
D. The output is sorted by the UNION ALL operator
E. NULLS are not ignored during duplicate checking
Correct Answer: BE

 

QUESTION 2
Which three statements are true about undoing segments and the use of undo by transactions in an Oracle database
instance? (Choose three.)
A. An undo segment may be used by multiple transactions simultaneously
B. Undo segments can wrap around to the first extent when a transaction fills the last extend of the undo segment
C. Undo segments have a minimum of three extents
D. Undo segments can extend when a transaction fills the last extent of the undo segment
E. A single transaction may use multiple undo segments simultaneously
F. Undo segments must be stored in a big file tablespace
G. Undo segments must be stored in a SMALL FILE tablespace
Correct Answer: ADG

 

QUESTION 3
Examine this description of the TRANSACTIONS table:[2021.1] lead4pass 1z0-082 practice test q3

Which two SQL statements execute successfully? (Choose two.)
A. SELECT customer_id AS “CUSTOMER-ID”, transaction_date AS DATE, amount + 100 “DUES” FROM transactions;

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QUESTION 1
Which two statements are true regarding constraints? (Choose two)
A. A constraint isenforced only for an INSERT operation on a table.

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QUESTION 1
Which two files must you copy from the Oracle home of the database that is being upgraded to the new Oracle home for
Oracle Database 12c? (Choose three.)
A. the tnsnames.ora file
B. the sqlnet.ora file
C. the initialization parameter file
D. the password file
E. the listener.ora file
Correct Answer: ABE
References: https://docs.oracle.com/cd/E11882_01/server.112/e23633/afterup.htm#UPGRD52747

 

QUESTION 2
Which statement is true about Enterprise Manager (EM) express in Oracle Database 12c?

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Which CANNOT be used with My Oracle Support (MOS)?

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Which two statements are true about MySQL Enterprise Firewall?

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