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[Hardware] New 1Z0-082 Test Answers | 1Z0-082 Popular Exams

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【Hardware】 New 1Z0-082 Test Answers | 1Z0-082 Popular Exams

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Oracle Database Administration I Sample Questions (Q85-Q90):NEW QUESTION # 85
Which two statements are true about the ORDER BY clause when used with a SQL statement containing a SET operator such as UNION? (Choose two.)
  • A. Column positions must be used in the ORDER BY clause
  • B. Only column names from the first SELECT statement in the compound query are recognized
  • C. The first column in the first SELECT of the compound query with the UNION operator is used by default to sort output in the absence of an ORDER BY clause
  • D. Each SELECT statement in the compound query can have its own ORDER BY clause
  • E. Each SELECT statement in the compound query must have its own ORDER BY clause
Answer: B,C

NEW QUESTION # 86
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. Both statements will return NULL if either UNIT_PRICE or QUANTITY contains NULL.
  • C. Statement 2 may return multiple rows of output.
  • D. Both the statements give the same output.
  • E. Statement 1 returns only one row of output.
Answer: C,E
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 # 87
Which two statements are true about views used for viewing tablespace and datafile information? (Choose two.)
  • A. VSTABLESPACE displays information about tablespaces contained in the data dictionary
  • B. VSTABLESPACE displays information that is contained in the controlfile about tablespaces
  • C. Tablespace free space can be viewed in VSTABLESPACE
  • D. A datafile can be renamed when the database is in MOUNT state and the new file name is displayed when querying DBA_DATA_FILES after the database is opened
  • E. Tablespace free space can be viewed in DBA_TABLESPACES
Answer: B,D

NEW QUESTION # 88
You want to use table compression suitable for OLTP that will:
1. Compress rows for all DML statements on that table
2. Minimize the overheads associated with compression
Which compression option is best suited for this?
  • A. ROW STORE COMPRESS ADVANCED
  • B. ROW STORE COMPRESS BASIC
  • C. COLUMN STORE COMPRESS FOR ARCHIVE LOW
  • D. COLUMN STORE COMPRESS FOR ARCHIVE HIGH
  • E. COLUMN STORE COMPRESS FOR QUERY LOW
Answer: A
Explanation:
Explanation/Reference: https://www.oracle.com/technetwo ... ced-compression-wp-
12c-1896128.pdf

NEW QUESTION # 89
Which two functions are performed by a listener?
  • A. connecting a user process to a server process
  • B. creating a user session in the System Global Area (SGA)
  • C. returning the results of processing from the server process to the user process
  • D. verifying the service name in an incoming user request
  • E. maintaining the connection to a client's user process until the user request is completed
  • F. verifying a user's authentication credentials
Answer: A,C

NEW QUESTION # 90
......
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