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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Using Conversion Functions and Conditional Expressions | 10% | - 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 - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions |
| Topic 2: Retrieving Data Using the SQL SELECT Statement | 5% | - Execute a basic SELECT statement - List the capabilities of SQL SELECT statements - Differentiate between SQL statements and SQL*Plus commands |
| Topic 3: Using Subqueries to Solve Queries | 15% | - Write single-row and multi-row subqueries - List the types of subqueries - Define subqueries - Describe the types of problems that subqueries can solve |
| Topic 4: 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 - Write SELECT statements to access data from more than one table using equijoins and non-equijoins - Cross join tables |
| Topic 5: Controlling User Access | 5% | - Differentiate system privileges from object privileges - Grant privileges on tables and on a view - Distinguish between granting privileges and roles |
| Topic 6: Reporting Aggregated Data Using Group Functions | 15% | - Group data by using the GROUP BY clause - Include or exclude grouped rows by using the HAVING clause - Identify the available group functions - Describe the use of group functions |
| Topic 7: Using DDL Statements to Create and Manage Tables | 14% | - Drop, rename, and truncate tables - Review the table structure - Categorize the main database objects - Create a simple table - Describe the data types that are available for columns - Alter table definitions |
| Topic 8: 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 9: Restricting and Sorting Data | 6% | - Use ampersand substitution to restrict and sort output at runtime - Limit the rows that are retrieved by a query - Use DEFINE and UNDEFINE commands - Sort the rows that are retrieved by a query |
| Topic 10: Working with Oracle Database SQL | 8% | - Start up and shut down a database - Describe the Oracle Database architecture - Create a container database - Explain the installation of Oracle Database software |
| Topic 11: Using Single-Row Functions to Customize Output | 10% | - Manipulate strings with character function in the SELECT and WHERE clauses - Describe the differences between single-row and multiple-row functions - Manipulate dates with the date functions - Perform arithmetic with date data - Manipulate numbers with the ROUND, TRUNC, and MOD functions |
| Topic 12: Creating Other Schema Objects | 10% | - Create and maintain indexes - Create, maintain, and use sequences - Create synonyms for database objects - Create, modify, and retrieve data from a view |
| Topic 13: Manipulating Data | 14% | - Describe each data manipulation language (DML) statement - Update rows in a table - Insert rows into a table - Control transactions - Delete rows from a table |
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NEW QUESTION # 25
Examine the command:
What does ON DELETE CASCADE imply?
Answer: C
NEW QUESTION # 26
You must create a table EMPLOYEES in which the values in the columns EMPLOYEES_ID and LOGIN_ID must be unique and not null.
Which two SQL statements would create the required table? (Choose two.)
Answer: B,E
NEW QUESTION # 27
The INVOICEtable has a QTY_SOLDcolumn of data type NUMBER and an INVOICE_DATEcolumn of data type DATE.
NLS_DATE_FORMATis set to DD-MON-RR.
Which two are true about data type conversions involving these columns in query expressions? (Choose two.)
Answer: B,E
Explanation:
Explanation/Reference:
NEW QUESTION # 28
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: A
NEW QUESTION # 29
Examine these statements which execute successfully:
ALTER SESSION SET NLS_DATE_FORMAT = 'DD-MON-YYY HH24 :MT:SS;'
ALTER SESSION SET TIME-ZONE = '-5:00;:
Examine the result:
If LOCALTIMESTAMP was selected at the same time, what would it return?
Answer: D
NEW QUESTION # 30
......
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