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Oracle 1z1-071 Exam Overview:

Certification Vendor:	Oracle
Exam Name:	Oracle Database SQL
Exam Number:	1Z0-071
Available Languages:	English, Chinese (Simplified), Spanish, Japanese, Portuguese
Exam Price:	USD 245 (varies by country/region)
Exam Format:	Multiple Response, Proctored exam, Computer-based exam, Multiple Choice
Certificate Validity Period:	Non-expiring (Oracle certification policy subject to change)
Related Certifications:	Oracle Database Administrator Certified Associate Oracle Database Development certifications
Exam Duration:	120 minutes
Recommended Training:	Oracle Database SQL Training
Exam Registration:	Oracle Certification Registration
Sample Questions:	Oracle 1z1-071 Sample Questions
Exam Way:	Online proctored or test center delivery depending on region
Pre Condition:	No formal prerequisites required; basic knowledge of relational databases and SQL recommended.
Official Syllabus URL:	https://education.oracle.com/oracle-database-sql/pexam_1Z0-071

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1z1-071 Exam Questions, 1z1-071 study materials. Oracle Database SQL

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Oracle Database SQL Sample Questions (Q135-Q140):

NEW QUESTION # 135
Which two statements are true about sequences created in a single instance database?
(Choose two.)

A. CURRVAL is used to refer to the last sequence number that has been generated.
B. When a database instance shuts down abnormally, the sequence numbers that have been cached but not used would be available once again when the database instance is restarted.
C. The numbers generated by a sequence can be used only for one table.
D. DELETE <sequencename> would remove a sequence from the database.
E. When the MAXVALUE limit for the sequence is reached, you can increase the MAXVALUE limit by using the ALTER SEQUENCE statement.

Answer: A,E

Explanation:
References:
http://docs.oracle.com/cd/E11882_01/server.112/e41084/statements_2012.htm#SQLRF00
817
https://docs.oracle.com/cd/A84870_01/doc/server.816/a76989/ch26.htm

NEW QUESTION # 136
In the customers table, the CUST_CITY column contains the value 'Paris' for the CUST_FIRST_NAME 'Abigail'.
Evaluate the following query:

What would be the outcome?

A. Abigail PA
B. An error message
C. Abigail IS
D. Abigail Pa

Answer: D

NEW QUESTION # 137
View the Exhibits and examine the structure of the COSTS and PROMOTIONS tables.
You want to display PROD_IDS whose promotion cost is less than the highest cost PROD_ID in a promotion time interval.
Examine this SQL statements:

What will be the result?
Exhibit 1.

Exhibit 2.

A. It gives an error because the GROUP BY clause is not valid
B. It gives an error because the ALL keyword is not valid
C. It executes successfully and gives the required result
D. It executes successfully but does not give the required result

Answer: C

NEW QUESTION # 138
Which two are true about queries using set operators such as UNION?

A. Queries using set operators do not perform implicit conversion across data type groups (e.g. character, numeric)
B. An expression in the first SELECT list must have a column alias for the expression
C. CHAR columns of different lengths used with a set operator retum a vAacsua mhtoe e equals the longest CHAR value.
D. In a query containing multiple set operators INTERSECT always takes precedence over UNION and UNION ALL
E. All set operators are valid on columns all data types.

Answer: C,D

Explanation:
Set operators allow you to combine multiple queries into a single query. The key points for each option are:
A). An expression in the first SELECT list does not need to have a column alias; however, the column alias given to an expression in the first SELECT list is used as the column name of the output.
B). This statement is true. When CHAR columns of different lengths are combined with a set operator, Oracle will pad the shorter values with spaces to match the length of the longest value. This behavior is consistent with the SQL standard and Oracle's treatment of the CHAR datatype.
C). Oracle Database performs implicit conversion between compatible data types where necessary when using set operators. For example, a NUMBER can be implicitly converted to a VARCHAR2 and vice versa if the context requires it.
D). This is true. When multiple set operators are used in a single query, the INTERSECT operator takes precedence over the UNION and UNION ALL operators. This order of operation can be overridden by using parentheses.
E). Not all set operators work with all data types. For instance, LOB and LONG RAW data types cannot be used with set operators.
References:
* Oracle Database SQL Language Reference, 12c Release 1 (12.1): "Set Operators"
* Oracle Database SQL Language Reference, 12c Release 1 (12.1): "Data Types"

NEW QUESTION # 139
You execute these commands successfully:
CREATE GLOBAL TEMPORARY TABLE invoices _ gtt
( customer id INTEGER,
invoice_ total NUMBER (10, 2)
) ON COMMIT PRESERVE ROWS;
INSERT INTO invoices_ gtt VALUES (1, 100);
COMMIT;
Which two are true?

A. When you terminate your session, the row will be deleted.
B. To drop the table in this session, you must first truncate it.
C. Other sessions can view the committed row.
D. You can add a foreign key to the table.
E. You can add a column to the table in this session.

Answer: A,B

NEW QUESTION # 140
......

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