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Prerequisites

There are no official requirements for passing the Oracle 1Z0-071 exam. However, it is recommended that the students have a good grasp of SQL syntax rules. They also need to be able to use general SQL functions, identify the result of fundamental DDL operations, and know how to implement SQL statements and functions.

1z0-071 Test Answers

First-grade 1z0-071 Test Answers to Obtain Oracle Certification

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Oracle Corporation, the developer of the Oracle Database SQL certification exam, provides various resources to help candidates prepare for the exam. These resources include training courses, study guides, practice tests, and online forums. Oracle Corporation also offers a certification program that allows candidates to showcase their skills and knowledge in Oracle databases and SQL.

Oracle Database SQL Sample Questions (Q257-Q262):

NEW QUESTION # 257
View the Exhibit and examine the structure of the ORDER_ITEMS table. (Choose the best answer.) You must select the ORDER_ID of the order that has the highest total value among all the orders in the ORDER_ITEMS table.
Which query would produce the desired result?

• A. SELECT order_idFROM order_itemsGROUP BY order_idHAVING
  SUM(unit_price*quantity) = (SELECT MAX (SUM(unit_price*quantity))FROM order_items GROUP BY order_id);
• B. SELECT order_idFROM order_itemsWHERE (unit_price*quantity) = (SELECT MAX(unit_price*quantity)FROM order_itemsGROUP BY order_id)
• C. SELECT order_idFROM order_itemsWHERE(unit_price*quantity)
  MAX(unit_price*quantity)GROUP BY order_id);
• D. SELECT order_idFROM order_itemsWHERE(unit_price*quantity) = (SELECT MAX (SUM(unit_price*quantity)FROM order_items) GROUP BY order_id);

Answer: A

NEW QUESTION # 258
Which two are true about granting privileges on objects? (Choose two.)

• A. A table owner must grant the REFERENCESprivilege to allow other users to create FOREIGN KEY constraints using that table.
• B. The owner of an object acquires all object privileges on that object by default.
• C. An object privilege can be granted to a role only by the owner of that object.
• D. An object privilege can be granted to other users only by the owner of that object.
• E. The WITH GRANT OPTIONclause can be used only by DBA users.

Answer: A,B

Explanation:
Explanation/Reference: https://docs.oracle.com/cd/B19306_01/network.102/b14266/authoriz.htm#i1008214

NEW QUESTION # 259
Which statement is true regarding external tables?

• A. ORACLE_LOADER and ORACLE_DATAPUMP have exactly the same functionality when used with an external table.
• B. The data and metadata for an external table are stored outside the database.
• C. The CREATE TABLE AS SELECT statement can be used to upload data into a normal table in the database from an external table.
• D. The default REJECT LIMIT for external tables is UNLIMITED.

Answer: C

Explanation:
https://docs.oracle.com/cd/B28359_01/server.111/b28310/tables013.htm

NEW QUESTION # 260
View the Exhibit and examine the description for the PRODUCTS and SALES table.

PROD_ID is a primary key in the PRODUCTS table and foreign key in the SALES table with ON DELETE CASCADE option. The SALES table contains data for the last three years. You want to remove all the rows from the PRODUCTS table for which no sale was done for the last three years.
Which is the valid DELETE statement?

• A. DELETEFROM productsWHERE prod_id IN (SELECT prod_idFROM salesWHERE SYSDATE -3*365 = time_id);
• B. DELETEFROM productsWHERE prod_id = (SELECT prod_idFROM salesWHERE SYSDATE = time_id - 3*365 );
• C. DELETEFROM productsWHERE prod_id = (SELECT prod_idFROM salesWHERE time_id - 3*365 = SYSDATE );
• D. DELETEFROM productsWHERE prod_id IN (SELECT prod_idFROM salesWHERE time_id = SYSDATE - 3*365 );

Answer: A

NEW QUESTION # 261
Which three statements are correct regarding indexes? (Choose three.)

• A. Indexes should be created on columns that are frequently referenced as part of any expression.
• B. A non-deferrable PRIMARY KEY or UNIQUE KEY constraint in a table automatically attempts to create a unique index.
• C. When a table is dropped, corresponding indexes are automatically dropped.
• D. For each DML operation performed on a table, the corresponding indexes are automatically updated if required.

Answer: B,C,D

Explanation:
Explanation
http://viralpatel.net/blogs/understanding-primary-keypk-constraint-in-oracle/

NEW QUESTION # 262
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