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| Section | Weight | Objectives |
|---|---|---|
| Working with Oracle Database SQL | 8% | - Explain the installation of Oracle Database software - Create a container database - Start up and shut down a database - Describe the Oracle Database architecture |
| Using DDL Statements to Create and Manage Tables | 14% | - Create a simple table - Drop, rename, and truncate tables - Review the table structure - Alter table definitions - Describe the data types that are available for columns - Categorize the main database objects |
| Using Single-Row Functions to Customize Output | 10% | - Perform arithmetic with date data - 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 - Manipulate numbers with the ROUND, TRUNC, and MOD functions |
| Displaying Data from Multiple Tables Using Joins | 15% | - Cross join tables - View data that does not meet a join condition by using outer joins - 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 |
| Using Set Operators | 5% | - Use a set operator to combine multiple queries into a single query - Describe the order of precedence when the set operators are used - Describe set operators |
| Using Subqueries to Solve Queries | 15% | - Define subqueries - List the types of subqueries - Describe the types of problems that subqueries can solve - Write single-row and multi-row subqueries |
| Manipulating Data | 14% | - Describe each data manipulation language (DML) statement - Update rows in a table - Insert rows into a table - Delete rows from a table - Control transactions |
| Reporting Aggregated Data Using Group Functions | 15% | - Describe the use of group functions - Group data by using the GROUP BY clause - Identify the available group functions - Include or exclude grouped rows by using the HAVING clause |
| 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 |
| 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 - Use conditional IF THEN ELSE logic in a SELECT statement - Apply the NVL, NULLIF, and COALESCE functions to data |
| 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 |
| Controlling User Access | 5% | - Grant privileges on tables and on a view - Distinguish between granting privileges and roles - Differentiate system privileges from object privileges |
| Restricting and Sorting Data | 6% | - Use DEFINE and UNDEFINE commands - Sort the rows that are retrieved by a query - Limit the rows that are retrieved by a query - Use ampersand substitution to restrict and sort output at runtime |
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NEW QUESTION # 356
Which statement is true regarding external tables?
Answer: C
Explanation:
References:
https://docs.oracle.com/cd/B28359_01/server.111/b28310/tables013.htm
NEW QUESTION # 357
View the Exhibit and examine the structure of the PRODUCT table.
Which two tasks would require subqueries? (Choose two.)
Answer: B,D
NEW QUESTION # 358
Examine this query:
SELECT TRUNC (ROUND(156.00,-2),-1) FROM DUAL; What is the result?
Answer: B
NEW QUESTION # 359
Examine this partial command:
Which two clauses are required for this command to execute successfully? (Choose two.)
Answer: B,C
NEW QUESTION # 360
View the Exhibit and examine the structure of the CUSTOMERStable.
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: D
NEW QUESTION # 361
......
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