Passtcert Oracle Database 1Z0-071 questions answers pdf
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Share some Oracle Database 1Z0-071 exam questions and answers below.
Evaluate the following two queries:
Which statement is true regarding the above two queries?
A. Performance would improve query 2 only if there are null values in the CUST__CREDIT__LIMIT column.
B. There would be no change in performance.
C. Performance would degrade in query 2.
D. Performance would improve in query 2.
Answer: B
Which statement is true regarding external tables?
A. The default REJECT LIMIT for external tables is UNLIMITED.
B. The data and metadata for an external table are stored outside the database.
C. ORACLE_LOADER and ORACLE_DATAPUMP have exactly the same functionality when used with an external table.
D. The CREATE TABLE AS SELECT statement can be used to unload data into regular table in the database from an external table.
Answer: D
Which statement is true regarding the INTERSECT operator?
A. It ignores NULL values
B. The number of columns and data types must be identical for all SELECT statements in the query
C. The names of columns in all SELECT statements must be identical
D. Reversing the order of the intersected tables the result
Answer: B
Which two tasks can be performed by using Oracle SQL statements?
A. changing the password for an existing database
B. connecting to a database instance
C. querying data from tables across databases
D. starting up a database instance
E. executing operating system (OS) commands in a session
Answer: C,E
Which two statements are true regarding the GROUP BY clause in a SQL statement? (Choose two.)
A. You can use column alias in the GROUP BY clause.
B. Using the WHERE clause after the GROUP BY clause excludes the rows after creating groups.
C. The GROUP BY clause is mandatory if you are using an aggregate function in the SELECT clause.
D. Using the WHERE clause before the GROUP BY clause excludes the rows before creating groups.
E. If the SELECT clause has an aggregate function, then those individual columns without an aggregate function in the SELECT clause should be included in the GROUP BY clause.
Answer: D,E
Passtcert provide you the Oracle Database 1Z0-071 questions answers pdf with high quality and reliability. You can free download online part of Passtcert providing Oracle Database 1Z0-071 questions answers pdf as a try. After your trail I believe you will be very satisfied with our product. Having Oracle certification 1Z0-071 exam certificate is equivalent to your life with a new milestone and the work will be greatly improved. I believe that everyone in the IT area is eager to have it.
Share some Oracle Database 1Z0-071 exam questions and answers below.
Evaluate the following two queries:
Which statement is true regarding the above two queries?
A. Performance would improve query 2 only if there are null values in the CUST__CREDIT__LIMIT column.
B. There would be no change in performance.
C. Performance would degrade in query 2.
D. Performance would improve in query 2.
Answer: B
Which statement is true regarding external tables?
A. The default REJECT LIMIT for external tables is UNLIMITED.
B. The data and metadata for an external table are stored outside the database.
C. ORACLE_LOADER and ORACLE_DATAPUMP have exactly the same functionality when used with an external table.
D. The CREATE TABLE AS SELECT statement can be used to unload data into regular table in the database from an external table.
Answer: D
Which statement is true regarding the INTERSECT operator?
A. It ignores NULL values
B. The number of columns and data types must be identical for all SELECT statements in the query
C. The names of columns in all SELECT statements must be identical
D. Reversing the order of the intersected tables the result
Answer: B
Which two tasks can be performed by using Oracle SQL statements?
A. changing the password for an existing database
B. connecting to a database instance
C. querying data from tables across databases
D. starting up a database instance
E. executing operating system (OS) commands in a session
Answer: C,E
Which two statements are true regarding the GROUP BY clause in a SQL statement? (Choose two.)
A. You can use column alias in the GROUP BY clause.
B. Using the WHERE clause after the GROUP BY clause excludes the rows after creating groups.
C. The GROUP BY clause is mandatory if you are using an aggregate function in the SELECT clause.
D. Using the WHERE clause before the GROUP BY clause excludes the rows before creating groups.
E. If the SELECT clause has an aggregate function, then those individual columns without an aggregate function in the SELECT clause should be included in the GROUP BY clause.
Answer: D,E
Passtcert provide you the Oracle Database 1Z0-071 questions answers pdf with high quality and reliability. You can free download online part of Passtcert providing Oracle Database 1Z0-071 questions answers pdf as a try. After your trail I believe you will be very satisfied with our product. Having Oracle certification 1Z0-071 exam certificate is equivalent to your life with a new milestone and the work will be greatly improved. I believe that everyone in the IT area is eager to have it.
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