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Topics of ORACLE 1z0-071 Certification Exam

Oracle 1z0-071 Dumps covers the following topics of the ORACLE 1z0-071 exam.

Oracle Architecture
Oracle Database Concepts
SQL Fundamentals
Data Management Concepts
SQL Language Features
SQL Performance Tuning

Oracle 1z1-071 exam is designed to evaluate the candidate's knowledge and skills in the area of Oracle Database SQL. 1z0-071 Exam is intended for individuals who wish to pursue a career as an Oracle Database Developer or Administrator. The Oracle 1z1-071 exam is a certification exam that is globally recognized and highly valued in the IT industry.

Oracle Database SQL Sample Questions (Q201-Q206):

NEW QUESTION # 201
The SYSDATEfunction displays the current Oracle Server date as:
21-MAY-19
You wish to display the date as:
MONDAY, 21 MAY, 2019
Which statement will do this?

A. SELECT TO_CHAR(SYSDATE, 'FMDAY, DD MONTH, YYYY') FROM DUAL;
B. SELECT TO_CHAR(SYSDATE, 'FMDD, DAY MONTH, YYYY') FROM DUAL;
C. SELECT TO_DATE(SYSDATE, 'FMDAY, DD MONTH, YYYY') FROM DUAL;
D. SELECT TO_CHAR(SYSDATE, 'FMDAY, DDTH MONTH, YYYY') FROM DUAL;

Answer: A

Explanation:
SELECT ID, TO_CHAR(Start_Date,'fmDay Month fmDD, YYYY') AS "Start Date" FROM Employee; Reference: http://www.java2s.com/Code/Oracle/Data-Type/ TOCHARDatefmDayMonthfmDDYYYYEmbeddedspacescanberemovedbyplacingthefmprefix.htm

NEW QUESTION # 202
View the Exhibit and examine the structure in the DEPARTMENTS tables. (Choose two.) Examine this SQL statement:
SELECT department_id "DEPT_ID", department_name, 'b' FROM
departments
WHERE departments_id=90
UNION
SELECT department_id, department_name DEPT_NAME, 'a' FROM
departments
WHERE department_id=10
Which two ORDER BY clauses can be used to sort output?

A. ORDER BY DEPT_NAME;
B. ORDER BY 3;
C. ORDER BY 'b';
D. ORDER BY DEPT_ID;

Answer: B,D

NEW QUESTION # 203
In which three situations does a transaction complete? (Choose three.)

A. when a data definition language (DDL) statement is executed
B. when a DELETE statement is executed
C. when a PL/SQL anonymous block is executed
D. when a TRUNCATE statement is executed after the pending transaction
E. when a ROLLBACK command is executed

Answer: A,D,E

Explanation:
Explanation
https://docs.oracle.com/cd/B19306_01/server.102/b14220/transact.htm

NEW QUESTION # 204
Examine the description of the ENPLOYES table:

Which query requires explicit data type conversion?

A. SELECT SUBSTR(join date, 1, 2) - 10 FROM employees;
B. SELECT salary + '120.50' FROM employees;
C. SELECT join _ date FROM employees WHERE join date > *10-02-2018';
D. SELECT join_ date||''|| salary FROM employees;
E. SELECT join_ date + '20' EROM employees;

Answer: C

Explanation:
A look at the queries and how Oracle Database handles data type conversion:
A: This statement takes a substring of the JOIN_DATE column. Since JOIN_DATE is a DATE type and SUBSTR function expects a string, implicit conversion will occur from DATE to string based on the NLS_DATE_FORMAT setting. However, this will not require explicit conversion in the query itself.
B: This statement tries to add '20' to JOIN_DATE. Oracle Database does not support adding a string to a DATE implicitly. An explicit conversion of '20' to a number is required, or using the INTERVAL keyword to add days or years as appropriate.
C: This statement concatenates the date with an empty string and the salary. The database will implicitly convert the JOIN_DATE from a DATE to a string using the NLS_DATE_FORMAT setting and then perform the concatenation.
D: This query attempts to compare a DATE column with a string literal '*10-02-2018'. An explicit conversion using TO_DATE is needed to convert the string to a DATE data type with the appropriate date format mask. In this case, because the string does not follow the NLS_DATE_FORMAT 'DD-MON-YY', it will not be implicitly converted correctly.
E: This statement adds '120.50' to SALARY. Oracle Database will implicitly convert the string '120.50' to a number before performing the arithmetic addition, as SALARY is a NUMBER data type.

NEW QUESTION # 205
Which three actions can you perform on an existing table containing date?

A. Add a new column as the table's first column.
B. Change the default value of a column.
C. Add a new NOT NULL Column with a DEFAULT value.
D. Change a DATE Column containing data to a NUMBER data type.
E. Increase the width of a numeric column.
F. Define a default value that is automatically inserted into a column containing nulls.

Answer: B,C,E

NEW QUESTION # 206
......

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Associate 1z0-071 Level Exam | Exam 1z0-071 Actual Tests

Exam 1z0-071 Actual Tests & 1z0-071 Practice Braindumps

Topics of ORACLE 1z0-071 Certification Exam

Oracle Database SQL Sample Questions (Q201-Q206):

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