HIGH PASS-RATE 1Z0-082 - ORACLE DATABASE ADMINISTRATION I ANSWERS REAL QUESTIONS

High Pass-Rate 1Z0-082 - Oracle Database Administration I Answers Real Questions

High Pass-Rate 1Z0-082 - Oracle Database Administration I Answers Real Questions

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Oracle 1Z0-082 actual test questions have effective high-quality content and cover many the real test questions. Oracle 1Z0-082 study guide is the best product to help you achieve your goal. If you pass exam and obtain a certification with our Oracle 1Z0-082 Study Materials, you can apply for satisfied jobs in the large enterprise and run for senior positions with high salary and high benefits.

Oracle 1Z0-082 (Oracle Database Administration I) Certification Exam is an essential certification for IT professionals who aim to work in the database administration field. Oracle Database Administration I certification is designed to validate the skills and knowledge required to become an Oracle Database Administrator. Oracle 1Z0-082 Certification is an entry-level certification that covers the basics of database administration.

Oracle Database Administration I Sample Questions (Q77-Q82):

NEW QUESTION # 77
Which three statements are true about inner and outer joins? (Choose three.)

  • A. Outer joins can be used when there are multiple join conditions on two tables
  • B. A full outer join must use Oracle syntax
  • C. An inner join returns matched rows
  • D. Outer joins can only be used between two tables per query
  • E. A left or right outer join returns only unmatched rows
  • F. A full outer join returns matched and unmatched rows

Answer: C,E,F

Explanation:
Explanation/Reference: https://www.studytonight.com/dbms/joining-in-sql.php


NEW QUESTION # 78
In the ORCL database, UNDOTBS1 is the active undo tablespace with these properties:
1. A size of 100 MB
2. AUTOEXTEND is off
3. UNDO_RETENTION is set to 15 minutes
4. It has RETENTION GUARANTEE
UNDOTBS1 fills with uncommitted undo 10 minutes after the database opens.
What will happen when the next update is attempted by any transaction?

  • A. It succeeds and the least recently written undo block of UNDOTBS1 is overwritten by the generated undo.
  • B. It succeeds and the least recently read undo block of UNDOTBS1 is overwritten by the generated undo.
  • C. It fails and returns the error message "ORA-30036: unable to extend segment by 8 in undo tablespace
    'UNDOTBS1' ".
  • D. It succeeds and the generated undo is stored in SYSAUX.
  • E. It succeeds and the generated undo is stored in SYSTEM.

Answer: A

Explanation:
Explanation


NEW QUESTION # 79
Which two statements are true about date/time functions in a session where NLS_DATE_FORMAT is set to DD-MON-YYYY HH24:MI:SS? (Choose two.)

  • A. SYSDATE and CURRENT_DATE return the current date and time set for the operating system of the database server
  • B. SYSDATE can be used in expressions only if the default date format is DD-MON-RR
  • C. CURRENT_TIMESTAMP returns the same date as CURRENT_DATE
  • D. CURRENT_TIMESTAMP returns the same date and time as SYSDATE with additional details of fractional seconds
  • E. SYSDATE can be queried only from the DUAL table
  • F. CURRENT_DATE returns the current date and time as per the session time zone

Answer: C,F

Explanation:
https://www.w3resource.com/oracle/datetime-functions/oracle-current_timestamp-function.php


NEW QUESTION # 80
Which two statements are true about the rules of precedence for operators? (Choose two.)

  • A. The + binary operator has the highest precedence in an expression in a SQL statement
  • B. The concatenation operator | | is always evaluated before addition and subtraction in an expression
  • C. NULLS influence the precedence of operators in an expression
  • D. Multiple parentheses can be used to override the default precedence of operators in an expression
  • E. Arithmetic operators with equal precedence are evaluated from left to right within an expression

Answer: D,E

Explanation:
Reference:
https://docs.oracle.com/cd/A87860_01/doc/server.817/a85397/operator.htm Precedence is the order in which Oracle evaluates different operators in the same expression. When evaluating an expression containing multiple operators, Oracle evaluates operators with higher precedence before evaluating those with lower precedence. Oracle evaluates operators with equal precedence from left to right within an expression.


NEW QUESTION # 81
What is true about non-equijoin statement performance? (Choose two.)

  • A. The BETWEEN condition always performs better than using the >= and <= conditions
  • B. The join syntax used makes no difference to performance
  • C. The BETWEEN condition always performs less well than using the >= and <= conditions
  • D. Table aliases can improve performance
  • E. The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax

Answer: D,E


NEW QUESTION # 82
......

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