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[General] Buy Real4exams Oracle 1z0-071 Valid Dumps Today and Get Free Updates for 1 year

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【General】 Buy Real4exams Oracle 1z0-071 Valid Dumps Today and Get Free Updates for 1 year

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Oracle Database SQL Sample Questions (Q31-Q36):NEW QUESTION # 31
Examine the description or the CUSTOMERS table:

For Customers whose income level has a value, you want to display the first name and due amount as 5% of their credit limit. Customers whose due amount is null should not be displayed.
Which query should be used?
  • A. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMONT FROM customers WHERE cust_income_level IS NOT NULL AND cust_credit_limit IS NOT NULL;
  • B. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMONT FROM customers WHERE cust_income_level <> NULL AND due_amount <> NULL;
  • C. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMONT FROM customers WHERE cust_income_level IS NOT NULL AND due_amount IS NOT NULL;
  • D. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level != NULL AND cust_credit_level != NULL;
  • E. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMONT FROM customers WHERE cust_income_level != NULL AND due_amount != NULL;
Answer: A

NEW QUESTION # 32
Which three statements are true about sequences in a single instance Oracle database? (Choose three.)
  • A. A sequence number that was allocated can be rolled back if a transaction fails
  • B. A sequence can issue duplicate values
  • C. Two or more tables cannot have keys generated from the same sequence
  • D. Sequences can always have gaps
  • E. A sequence's unallocated cached value are lost if the instance shuts down
  • F. A sequence can only be dropped by a DBA
Answer: A,E,F

NEW QUESTION # 33
Which three actions can you perform on an existing table containing date?
  • A. Add a new NOT NULL Column with a DEFAULT value.
  • B. Define a default value that is automatically inserted into a column containing nulls.
  • C. Add a new column as the table's first column.
  • D. Increase the width of a numeric column.
  • E. Change a DATE Column containing data to a NUMBER data type.
  • F. Change the default value of a column.
Answer: A,D,F

NEW QUESTION # 34
Which two are true about transactions in the Oracle Database?
  • A. An uncommitted transaction is automatically committed when the user exits SQL*Plus.
  • B. DML statements always start new transactions.
  • C. DDL statements automatically commit only data dictionary updates caused by executing the DDL.
  • D. A DDL statement issued by a session with an uncommitted transaction automatically Commits that transaction.
  • E. A session can see uncommitted updates made by the same user in a different session.
Answer: A,D
Explanation:
This question appears to be a duplicate of question no. 269, and the correct answers provided there apply here as well.
B). True. A DDL statement automatically commits any outstanding uncommitted transaction in the session. E.
True. Exiting SQL*Plus without explicitly committing a transaction will cause the uncommitted transaction to be rolled back, not committed.
A, C, and D are incorrect for the same reasons provided in the explanation for question no. 269.

NEW QUESTION # 35
Examine the structure proposed for the TRANSACTIONStable:

Which two statements are true regarding the storage of data in the above table structure? (Choose two.)
  • A. The CUST_CREDIT_VALUEcolumn would allow storage of positive and negative integers.
  • B. The CUST_STATUScolumn would allow storage of data up to the maximum VARCHAR2size of 4,000 characters.
  • C. The TRANS_DATEcolumn would allow storage of dates only in the dd-mon-yyyy format.
  • D. The TRANS_VALIDITYcolumn would allow storage of a time interval in days, hours, minutes, and seconds.
Answer: A,D

NEW QUESTION # 36
......
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