[Free] 2018(Jan) EnsurePass Testinsides Oracle 1z0-071 Dumps with VCE and PDF 41-50

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Oracle Database 12c SQL

Question No: 41

Which statement is true about an inner join specified in the WHERE clause of a query?

  1. It must have primary-key and foreign key constraints defined on the columns used in the join condition.

  2. It requires the column names to be the same in all tables used for the join conditions.

  3. It is applicable for equijoin and nonequijoin conditions.

  4. It is applicable for only equijoin conditions.

Answer: C

Question No: 42

Evaluate the following SQL statement:

SELECT product_name || #39;it#39;s not available for order#39; FROM product_information

WHERE product_status = #39;obsolete#39;;

You received the following error while executing the above query: ERROR:

ORA-01756: quoted string not properly terminated What would you do to execute the query successfully?

  1. Enclose the character literal string in the SELECT clause within the double quotation marks.

  2. Do not enclose the character literal string in the SELECT clause within the single quotation marks.

  3. Use Quote (q) operator and delimiter to allow the use of single quotation mark in the literal character string.

  4. Use escape character to negate the single quotation mark inside the literal character string in the SELECT clause.

Answer: C

Question No: 43

Examine thestructureof the members table:

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You want to display details of all members who reside in states starting with the letter A followed by exactly one character.

Which SQL statement must you execute?

  1. SELECT * FROM MEMBERS WHERE state LIKE #39;%A_* ;

  2. SELECT * FROM MEMBERS WHERE state LIKE #39;A_*;

  3. SELECT * FROM MEMBERS WHERE state LIKE #39;A_%#39;;

  4. SELECT * FROM MEMBERS WHERE state LIKE #39;A%#39;;

Answer: A

Question No: 44

You are designing the structure of a table in which two columns have the specifications:

COMPONENT_ID – must be able to contain a maximum of 12 alphanumeric characters and uniquely identify the row

EXECUTION_DATETIME – contains Century, Year, Month, Day, Hour, Minute, Second to the maximum precision and is used for calculations and comparisons between components.

Which two options define the data types that satisfy these requirements most efficiently?

  1. The EXECUTION_DATETIME must be of INTERVAL DAY TO SECOND data type.

  2. The EXECUTION _DATETIME must be of TIMESTAMP data type.

  3. The EXECUTION_DATATIME must be of DATE data type.

  4. The COMPONENT_ID must be of ROWID data type.

  5. The COMPONENT_ID must be of VARCHAR2 data type.

  6. The COMPONENT_ID column must be of CHAR data type.

Answer: C,E

Question No: 45

Examine the structure of the members table:

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What is the outcome?

  1. It fails because the alias name specified after the column names is invalid.

  2. It fails because the space specified in single quotation marks after the first two column names is invalid.

  3. It executes successfully and displays the column details in a single column with only the alias column heading.

  4. It executes successfully and displays the column details in three separate columns and replaces only the last column heading with the alias.

Answer: D

Question No: 46

View the Exhibit and examine the description of the DEPARTMENTS and EMPLOYEES tables.

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To retrieve data for all the employees for their EMPLOYEE_ID, FIRST_NAME, and DEPARTMENT NAME, the following SQL statement was written:

SELECT employee_id, first_name, department_name

FROM employees NATURAL JOIN departments;

The desired output is not obtained after executing the above SQL statement. What could be the reason for this?

  1. The NATURAL JOIN clause is missing the USING clause.

  2. The table prefix is missing for the column names in the SELECT clause.

  3. The DEPARTMENTS table is not used before the EMPLOYEES table in the FROM clause.

  4. The EMPLOYEES and DEPARTMENTS tables have more than one column with the same column name and data type.

Answer: D

Question No: 47

Which normal form is a table in if it has no multi-valued attributes and no partial dependencies?

  1. First normal form

  2. Second normal form

  3. Third normal form

  4. Fourth normal form

Answer: B

Question No: 48

Which statement correctly grants a system privilege?

  1. GRANT EXECUTE ON prod

    TO PUBLIC;

  2. GRANT CREATE VIEW ON tablel TO

    used;

  3. GRANT CREATE TABLE TO used ,user2;

  4. GRANT CREATE SESSION TO ALL;

Answer: C

Question No: 49

Which three statements are true regarding the data types?

  1. Only one LONG column can be used per table.

  2. ATIMESTAMP data type column stores only time values with fractional seconds.

  3. The BLOB data type column is used to store binary data in an operating system file.

  4. The minimum column width that can be specified for a varchar2 data type column is one.

  5. The value for a CHAR data type column is blank-padded to the maximum defined column width.

Answer: A,D,E

Question No: 50

View the Exhibit and examine PRODUCTS and ORDER_ITEMS tables.

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You executed the following query to display PRODUCT_NAME and the number of times the product has been ordered:

SELECT p.product_name, i.item_cnt

FROM (SELECT product_id, COUNT (*) item_cnt FROM order_items

GROUP BY product_id) i RIGHT OUTER JOIN products p ON i.product_id = p.product_id;

What would happen when the above statement is executed?

  1. The statement would execute successfully to produce the required output.

  2. The statement would not execute because inline views and outer joins cannot be used together.

  3. The statement would not execute because the ITEM_CNT alias cannot be displayed in the outer query.

  4. The statement would not execute because the GROUP BY clause cannot be used in the inline view.

Answer: A

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