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Oracle 1z1-071 Exam Syllabus Topics:

Section	Objectives
Data Manipulation and Schema Objects	- DML operations 1. INSERT, UPDATE, DELETE, MERGE - DDL operations 1. CREATE, ALTER, DROP tables and constraints
SQL Functions	- Single-row functions 1. Character, numeric, date functions - Conversion and conditional functions 1. TO_CHAR, TO_NUMBER, CASE expressions
Relational Database Concepts	- Tables, rows, columns, and relational model basics - Data types and database objects overview
Subqueries and Advanced SQL	- Single-row and multi-row subqueries - Correlated subqueries and nested queries
SQL Retrieval	- SELECT statements and filtering data 1. ORDER BY and row limiting 2. WHERE clause and conditions - Joins and set operations 1. INNER, OUTER, CROSS joins 2. UNION, INTERSECT, MINUS

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Oracle Database SQL Sample Questions (Q153-Q158):

NEW QUESTION # 153
View the exhibit and examine the structures of the EMPLOYEESand DEPARTMENTStables.

You want to update EMPLOYEEStable as follows:
Update only those employees who work in Boston or Seattle (locations 2900 and 2700).

Set department_idfor these employees to the department_idcorresponding to London

(location_id 2100).
Set the employees' salary in location_id2100 to 1.1 times the average salary of their department.

Set the employees' commission in location_id2100 to 1.5 times the average commission of their

department.
You issue the following command:

What is outcome?

A. It generates an error because a subquery cannot have a join condition in a UPDATEstatement.
B. It generates an error because multiple columns (SALARY, COMMISSION)cannot be specified together in an UPDATEstatement.
C. It executes successfully and gives the desired update
D. It executes successfully but does not give the desired update

Answer: D

NEW QUESTION # 154
Evaluate the following SQL statement
SQL>SELECT promo_id, prom _category FROM promotions
WHERE promo_category='Internet' ORDER BY promo_id
UNION
SELECT promo_id, promo_category FROM Pomotions
WHERE promo_category = 'TV'
UNION
SELECT promoid, promocategory FROM promotions WHERE promo category='Radio' Which statement is true regarding the outcome of the above query?

A. It executes successfully but ignores the ORDER BY clause because it is not located at the end of the compound statement.
B. It executes successfully and displays rows in the descend ignore of PROMO CATEGORY.
C. It produces an error because positional, notation cannot be used in the ORDER BY clause with SBT operators.
D. It produces an error because the ORDER BY clause should appear only at the end of a compound query-that is, with the last SELECT statement.

Answer: A

Explanation:
* C. It executes successfully but ignores the ORDER BY clause because it is not located at the end of the compound statement: The ORDER BY clause in a compound query using UNION should be placed at the very end of the final SELECT statement. Since it's located with the first SELECT, it will be ignored.

NEW QUESTION # 155
The CUSTOMERStable has a CUST_LAST_NAMEcolumn of data type VARCHAR2.
The table has two rows whose CUST_LAST_NAMEvalues are Anderson and Ausson.
Which query produces output for CUST_LAST_NAMEcontaining Oder for the first row and Aus for the second?

A. customers;
SELECT REPLACE (SUBSTR(cust_last_name, -3), 'An', 'O') FROM customers;
B. customers;
SELECT INITCAP (REPLACE(TRIM('son' FROM cust_last_name), 'An', 'O')) FROM
C. SELECT REPLACE (TRIM(TRAILING 'son' FROM cust_last_name), 'An', 'O') FROM
D. SELECT REPLACE (REPLACE(cust_last_name, 'son', ''), 'An', 'O') FROM customers;

Answer: D

NEW QUESTION # 156
Which three are true about the MERGEstatement? (Choose three.)

A. It can update, insert, or delete rows conditionally in multiple tables.
B. It can use views to produce source rows.
C. It can use subqueries to produce source rows.
D. It can combine rows from multiple tables conditionally to insert into a single table.
E. It can update the same row of the target table multiple times.
F. It can merge rows only from tables.

Answer: A,B,C

Explanation:
Explanation/Reference: https://www.oracletutorial.com/oracle-basics/oracle-merge/

NEW QUESTION # 157
Examine this description of the PRODUCTS table:

You successfully execute this command:

Which two statements execute without errors?

A. Option D
B. Option A
C. Option B
D. Option C

Answer: C

NEW QUESTION # 158
......

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