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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Restricting and Sorting Data | 6% | - Use ampersand substitution to restrict and sort output at runtime - Limit the rows that are retrieved by a query - Sort the rows that are retrieved by a query - Use DEFINE and UNDEFINE commands |
| Topic 2: Working with Oracle Database SQL | 8% | - Create a container database - Explain the installation of Oracle Database software - Start up and shut down a database - Describe the Oracle Database architecture |
| Topic 3: 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 4: Manipulating Data | 14% | - Update rows in a table - Delete rows from a table - Control transactions - Insert rows into a table - Describe each data manipulation language (DML) statement |
| Topic 5: Creating Other Schema Objects | 10% | - Create, modify, and retrieve data from a view - Create and maintain indexes - Create, maintain, and use sequences - Create synonyms for database objects |
| Topic 6: Using DDL Statements to Create and Manage Tables | 14% | - Create a simple table - Describe the data types that are available for columns - Categorize the main database objects - Drop, rename, and truncate tables - Review the table structure - Alter table definitions |
| Topic 7: Using Conversion Functions and Conditional Expressions | 10% | - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Describe implicit and explicit data type conversion - Apply the NVL, NULLIF, and COALESCE functions to data - Use conditional IF THEN ELSE logic in a SELECT statement |
| Topic 8: Using Single-Row Functions to Customize Output | 10% | - Describe the differences between single-row and multiple-row functions - Perform arithmetic with date data - Manipulate strings with character function in the SELECT and WHERE clauses - Manipulate numbers with the ROUND, TRUNC, and MOD functions - Manipulate dates with the date functions |
| Topic 9: Displaying Data from Multiple Tables Using Joins | 15% | - Write SELECT statements to access data from more than one table using equijoins and non-equijoins - Cross join tables - View data that does not meet a join condition by using outer joins - Join a table to itself by using a self-join |
| Topic 10: Reporting Aggregated Data Using Group Functions | 15% | - Identify the available group functions - Describe the use of group functions - Include or exclude grouped rows by using the HAVING clause - Group data by using the GROUP BY clause |
| Topic 11: Using Subqueries to Solve Queries | 15% | - Write single-row and multi-row subqueries - Describe the types of problems that subqueries can solve - List the types of subqueries - Define subqueries |
| Topic 12: Using Set Operators | 5% | - Describe set operators - Use a set operator to combine multiple queries into a single query - Describe the order of precedence when the set operators are used |
| Topic 13: Controlling User Access | 5% | - Grant privileges on tables and on a view - Distinguish between granting privileges and roles - Differentiate system privileges from object privileges |
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NEW QUESTION # 314
View the exhibit and examine the structure and data in the INVOICE table.
Which two SQL statements would execute successfully? (Choose two.)
Answer: A,C
NEW QUESTION # 315
View the Exhibit and examine the structure of the SALES table.
The following query is written to retrieve all those product IDs from the SALEStable that have more than
55000 sold and have been ordered more than 10 items.
Which statement is true regarding this SQL statement?
Answer: C
NEW QUESTION # 316
Examine the description of the EMPLOYEES table:
Which statement increases each employee's SALARY by the minimum SALARY for their DEPARTM ENT_ID?
Answer: A
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.
References:
* Oracle Database SQL Language Reference, 12c Release 1 (12.1): "UPDATE"
NEW QUESTION # 317
View the Exhibit and examine the structure of the PORDUCT_INFORMATION table.
(Choose the best answer.)
PRODUCT_ID column is the primary key.
You create an index using this command:
SQL > CREATE INDEX upper_name_idx
ON product_information(UPPER(product_name));
No other indexes exist on the PRODUCT_INFORMATION table.
Which query would use the UPPER_NAME_IDX index?
Answer: C
NEW QUESTION # 318
View the exhibit and examine the description of the PRODUCT_INFORMATIONtable.
Which SQL statement would retrieve from the table the number of products having LIST_PRICEas NULL?
Answer: B
NEW QUESTION # 319
......
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