1z0-071 Testking Exam Questions - 1z0-071 Practice Exam

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Oracle 1z0-071 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Using Subqueries to Solve Queries	15%	- Write single-row and multi-row subqueries - Define subqueries - List the types of subqueries - Describe the types of problems that subqueries can solve
Topic 2: Restricting and Sorting Data	6%	- Sort the rows that are retrieved by a query - Use DEFINE and UNDEFINE commands - Use ampersand substitution to restrict and sort output at runtime - Limit the rows that are retrieved by a query
Topic 3: Using Conversion Functions and Conditional Expressions	10%	- Use conditional IF THEN ELSE logic in a SELECT statement - Describe implicit and explicit data type conversion - Apply the NVL, NULLIF, and COALESCE functions to data - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions
Topic 4: Retrieving Data Using the SQL SELECT Statement	5%	- List the capabilities of SQL SELECT statements - Differentiate between SQL statements and SQL*Plus commands - Execute a basic SELECT statement
Topic 5: Using Set Operators	5%	- Describe set operators - Describe the order of precedence when the set operators are used - Use a set operator to combine multiple queries into a single query
Topic 6: Manipulating Data	14%	- Delete rows from a table - Update rows in a table - Insert rows into a table - Describe each data manipulation language (DML) statement - Control transactions
Topic 7: Using DDL Statements to Create and Manage Tables	14%	- Categorize the main database objects - Describe the data types that are available for columns - Alter table definitions - Create a simple table - Review the table structure - Drop, rename, and truncate tables
Topic 8: Creating Other Schema Objects	10%	- Create, maintain, and use sequences - Create synonyms for database objects - Create and maintain indexes - Create, modify, and retrieve data from a view
Topic 9: Working with Oracle Database SQL	8%	- Describe the Oracle Database architecture - Start up and shut down a database - Explain the installation of Oracle Database software - Create a container database
Topic 10: Reporting Aggregated Data Using Group Functions	15%	- Identify the available group functions - Include or exclude grouped rows by using the HAVING clause - Group data by using the GROUP BY clause - Describe the use of group functions
Topic 11: Displaying Data from Multiple Tables Using Joins	15%	- Join a table to itself by using a self-join - View data that does not meet a join condition by using outer joins - Cross join tables - Write SELECT statements to access data from more than one table using equijoins and non-equijoins
Topic 12: Using Single-Row Functions to Customize Output	10%	- Manipulate dates with the date functions - Manipulate strings with character function in the SELECT and WHERE clauses - Manipulate numbers with the ROUND, TRUNC, and MOD functions - Perform arithmetic with date data - Describe the differences between single-row and multiple-row functions
Topic 13: Controlling User Access	5%	- Distinguish between granting privileges and roles - Differentiate system privileges from object privileges - Grant privileges on tables and on a view

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Oracle Database SQL Sample Questions (Q371-Q376):

NEW QUESTION # 371
Which two statements are true about dropping views?

A. The creator of a view to be dropped must have the drop any view privilege.
B. Views referencing a dropped view become invalid.
C. CASCADE CONSTRAINTS must be specified when referential integrity constraints on other objects refer to primary or unique keys in the view to be dropped.
D. Data selected by a view's defining query is deleted from its underlying tables when the view is dropped.
E. Read only views cannot be dropped.

Answer: A,B

NEW QUESTION # 372
The customers table has the following structure:

You need to write a query that does the following tasks:
1. Display the first name and tax amount of the customers. Tax is 5% of their credit limit.
2. Only those customers whose income level has a value should be considered.
3. Customers whose tax amount is null should not be considered.
Which statement accomplishes all the required tasks?

A. SELECT cust_first_name, cust_credit_limit * .05 AS TAX_AMOUNTFROM customersWHERE cust_income_level <> NULL ANDtax_amount <> NULL;
B. SELECT cust_first_name, cust_credit_limit * .05 AS TAX_AMOUNTFROM customersWHERE cust_income_level IS NOT NULL ANDtax_amount IS NOT NULL;
C. SELECT cust_first_name, cust_credit_limit * .05 AS TAX_AMOUNTFROM customersWHERE cust_income_level IS NOT NULL ANDcust_credit_limit IS NOT NULL;
D. SELECT cust_first_name, cust_credit_limit * .05 AS TAX_AMOUNTFROM customersWHERE (cust_income_level, tax_amount) IS NOT NULL;

Answer: C

NEW QUESTION # 373
Which two statements are true about Oracle synonyms?

A. All private synonym names must be unique in the database.
B. Any user can create a PUBLICsynonym.
C. A synonym can have a synonym.
D. A synonym has an object number.
E. A synonym can be created on an object in a package.

Answer: A,E

Explanation:
Explanation/Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_7001.htm

NEW QUESTION # 374
Which three statements are true about views in an Oracle Database? (Choose three.)

A. Rows inserted into a table using a view are retained in the table if the view is dropped.
B. Views have no object number.
C. Views have no segment.
D. A view can be created that refers to a non-existent table in its defining query.
E. Views can join tables only if they belong to the same schema.
F. A SELECT statement cannot contain a WHERE clause when querying a view containing a WHEREclause in its defining query.

Answer: A,C,D

NEW QUESTION # 375
In which normal form is a table, if it has no multi-valued attributes and no partial dependencies?

A. third normal form
B. first normal form
C. fourth normal form
D. second normal form

Answer: D

Explanation:
https://blog.udemy.com/database-normal-forms/

NEW QUESTION # 376
......

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