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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Using Single-Row Functions to Customize Output | 10% | - Manipulate strings with character function in the SELECT and WHERE clauses - Manipulate dates with the date functions - Describe the differences between single-row and multiple-row functions - Perform arithmetic with date data - Manipulate numbers with the ROUND, TRUNC, and MOD functions |
| Topic 2: Creating Other Schema Objects | 10% | - Create and maintain indexes - Create, modify, and retrieve data from a view - Create synonyms for database objects - Create, maintain, and use sequences |
| Topic 3: Manipulating Data | 14% | - Update rows in a table - Describe each data manipulation language (DML) statement - Control transactions - Delete rows from a table - Insert rows into a table |
| Topic 4: Using DDL Statements to Create and Manage Tables | 14% | - Drop, rename, and truncate tables - Alter table definitions - Review the table structure - Describe the data types that are available for columns - Categorize the main database objects - Create a simple table |
| Topic 5: Controlling User Access | 5% | - Distinguish between granting privileges and roles - Grant privileges on tables and on a view - Differentiate system privileges from object privileges |
| Topic 6: Using Set Operators | 5% | - Describe the order of precedence when the set operators are used - Describe set operators - Use a set operator to combine multiple queries into a single query |
| Topic 7: Working with Oracle Database SQL | 8% | - Start up and shut down a database - Explain the installation of Oracle Database software - Create a container database - Describe the Oracle Database architecture |
| 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: Retrieving Data Using the SQL SELECT Statement | 5% | - Differentiate between SQL statements and SQL*Plus commands - Execute a basic SELECT statement - List the capabilities of SQL SELECT statements |
| Topic 10: 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 11: 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 12: Restricting and Sorting Data | 6% | - Sort the rows that are retrieved by a query - Limit the rows that are retrieved by a query - Use DEFINE and UNDEFINE commands - Use ampersand substitution to restrict and sort output at runtime |
| Topic 13: Reporting Aggregated Data Using Group Functions | 15% | - Group data by using the GROUP BY clause - Describe the use of group functions - Include or exclude grouped rows by using the HAVING clause - Identify the available group functions |
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NEW QUESTION # 43
Examine the structure of the PROGRAMS table:
Which two SQL statements would execute successfully?
Answer: C,D
NEW QUESTION # 44
In the customers table, the CUST_CITY column contains the value 'Paris' for the CUST_FIRST_NAME 'Abigail'.
Evaluate the following query:
What would be the outcome?
Answer: A
NEW QUESTION # 45
You execute the SQL statement:
What is the outcome?
Answer: D
NEW QUESTION # 46
Examine the description of the EMPLOYEES table:
Which statement increases each employee's SALARY by the minimum SALARY for their DEPARTM ENT_ID?
Answer: C
Explanation:
The correct statement to increase each employee's salary by the minimum salary for their department is:
D . This option correctly increases each employee's salary by the minimum salary in their department. The subquery calculates the minimum salary for the department of the current row being updated (e1) in the outer UPDATE statement. The subquery does not use GROUP BY since it returns a single value - the minimum salary for the matching department.
A, B, and C are incorrect. Specifically:
A uses a subquery with an aggregate function combined with GROUP BY, which is not needed and will result in an error.
B incorrectly references MIN(e1.salary) within the subquery, which is incorrect since e1 is the alias for the outer query's table and should not be used within the subquery.
C sets the salary to itself plus the minimum salary across all employees, not filtered by the department.
Reference:
Oracle Database SQL Language Reference, 12c Release 1 (12.1): "UPDATE"
NEW QUESTION # 47
View the Exhibit and examine the structure of the EMPLOYEES and JOB_HISTORY tables. (Choose all that apply.)
Examine this query which must select the employee IDs of all the employees who have held the job SA_MAN at any time during their employment.
SELECT EMPLOYEE_ID
FROM EMPLOYEES
WHERE JOB_ID = 'SA_MAN'
-------------------------------------
SELECT EMPLOYEE_ID
FROM JOB_HISTORY
WHERE JOB_ID = 'SA_MAN';
Choose two correct SET operators which would cause the query to return the desired result.
Answer: A,B
NEW QUESTION # 48
......
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