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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Retrieving Data Using the SQL SELECT Statement | 5% | - Differentiate between SQL statements and SQL*Plus commands - List the capabilities of SQL SELECT statements - Execute a basic SELECT statement |
| Topic 2: 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 3: Using Subqueries to Solve Queries | 15% | - Write single-row and multi-row subqueries - Describe the types of problems that subqueries can solve - Define subqueries - List the types of subqueries |
| Topic 4: Working with Oracle Database SQL | 8% | - Explain the installation of Oracle Database software - Describe the Oracle Database architecture - Create a container database - Start up and shut down a database |
| Topic 5: Controlling User Access | 5% | - Distinguish between granting privileges and roles - Differentiate system privileges from object privileges - Grant privileges on tables and on a view |
| Topic 6: Using Conversion Functions and Conditional Expressions | 10% | - Use conditional IF THEN ELSE logic in a SELECT statement - Apply the NVL, NULLIF, and COALESCE functions to data - Describe implicit and explicit data type conversion - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions |
| Topic 7: Using DDL Statements to Create and Manage Tables | 14% | - Review the table structure - Describe the data types that are available for columns - Categorize the main database objects - Alter table definitions - Drop, rename, and truncate tables - Create a simple table |
| Topic 8: Displaying Data from Multiple Tables Using Joins | 15% | - Write SELECT statements to access data from more than one table using equijoins and non-equijoins - Join a table to itself by using a self-join - Cross join tables - View data that does not meet a join condition by using outer joins |
| Topic 9: Creating Other Schema Objects | 10% | - Create, maintain, and use sequences - Create, modify, and retrieve data from a view - Create synonyms for database objects - Create and maintain indexes |
| Topic 10: 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 11: Using Single-Row Functions to Customize Output | 10% | - Manipulate numbers with the ROUND, TRUNC, and MOD functions - Manipulate strings with character function in the SELECT and WHERE clauses - Manipulate dates with the date functions - Perform arithmetic with date data - Describe the differences between single-row and multiple-row functions |
| Topic 12: Manipulating Data | 14% | - Control transactions - Delete rows from a table - Insert rows into a table - Describe each data manipulation language (DML) statement - Update rows in a table |
| Topic 13: Reporting Aggregated Data Using Group Functions | 15% | - Group data by using the GROUP BY clause - Describe the use of group functions - Identify the available group functions - Include or exclude grouped rows by using the HAVING clause |
Like the real exam, ValidDumps Oracle 1z1-071 Exam Dumps not only contain all questions that may appear in the actual exam, also the SOFT version of the dumps comprehensively simulates the real exam. With ValidDumps real questions and answers, when you take the exam, you can handle it with ease and get high marks.
NEW QUESTION # 60
View the exhibit and examine the ORDERStable.
The ORDERStable contains data and all orders have been assigned a customer ID. Which statement would add a NOTNULLconstraint to the CUSTOMER_IDcolumn?
ALTER TABLE orders
Answer: D
NEW QUESTION # 61
Which three are true about scalar subquery expressions?
Answer: A,B,C
Explanation:
Scalar subquery expressions are used in Oracle SQL to return a single value from a subquery.
* Option C: They can be nested.
* Scalar subqueries can indeed be nested within another scalar subquery, provided each subquery returns a single value.
* Option D: A scalar subquery expression that returns zero rows evaluates to null.
* According to Oracle documentation, if a scalar subquery returns no rows, the result is a NULL value, not zero or any other default.
* Option F: They can be used as default values for columns in a create table statement.
* Scalar subqueries can be specified in the DEFAULT clause of a column in a CREATE TABLE statement to dynamically assign default values based on the result of the subquery.
Options A, B, and E are incorrect based on Oracle SQL standards and functionalities.
NEW QUESTION # 62
Examine this SQL statement:
Which two are true?
Answer: A,B
NEW QUESTION # 63
Examine this statement:
SELECT1 AS id,' John' AS first_name, NULL AS commission FROM dual
INTERSECT
SELECT 1,'John' null FROM dual ORDER BY 3;
What is returned upon execution?[
Answer: B
Explanation:
Regarding the provided SQL INTERSECT query:
* D. 1 ROW: The INTERSECT operation will compare the two SELECT statements and return rows that are identical between them. Both queries are designed to return the same values ('1' for the ID, 'John' for the name, and NULL for the commission), hence one row that is identical between the two datasets will be returned.
Incorrect options:
* A: Only one identical row exists between the two datasets.
* B: There is an identical row; thus, it is not zero.
* C: There is no error in the syntax or execution of the query.
NEW QUESTION # 64
View the Exhibit and examine the structure of the CUSTOMERS table.
You want to generate a report showing the last names and credit limits of all customers whose last names start with A, B, or C, and credit limit is below 10,000.
Evaluate the following two queries:
SQL> SELECT cust_last_name, cust_credit_limit FROM customers
WHERE (UPPER(cust_last_name) LIKE 'A%' OR
UPPER (cust_last_name) LIKE 'B%' OR UPPER (cust_last_name) LIKE 'C%')
AND cust_credit_limit < 10000;
SQL>SELECT cust_last_name, cust_credit_limit FROM customers
WHERE UPPER (cust_last_name) BETWEEN 'A' AND 'C'
AND cust_credit_limit < 10000;
Which statement is true regarding the execution of the above queries?
Answer: C
NEW QUESTION # 65
......
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