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| Section | Weight | Objectives |
|---|---|---|
| Manipulating Data | 14% | - Update rows in a table - Control transactions - Delete rows from a table - Insert rows into a table - Describe each data manipulation language (DML) statement |
| Using Set Operators | 5% | - Use a set operator to combine multiple queries into a single query - Describe set operators - Describe the order of precedence when the set operators are used |
| Using Single-Row Functions to Customize Output | 10% | - Perform arithmetic with date data - Describe the differences between single-row and multiple-row functions - Manipulate numbers with the ROUND, TRUNC, and MOD functions - Manipulate dates with the date functions - Manipulate strings with character function in the SELECT and WHERE clauses |
| Restricting and Sorting Data | 6% | - Limit the rows that are retrieved by a query - Use ampersand substitution to restrict and sort output at runtime - Use DEFINE and UNDEFINE commands - Sort the rows that are retrieved by a query |
| Reporting Aggregated Data Using Group Functions | 15% | - Identify the available group functions - Describe the use of group functions - Group data by using the GROUP BY clause - Include or exclude grouped rows by using the HAVING clause |
| Using Subqueries to Solve Queries | 15% | - List the types of subqueries - Describe the types of problems that subqueries can solve - Write single-row and multi-row subqueries - Define subqueries |
| Using Conversion Functions and Conditional Expressions | 10% | - Use conditional IF THEN ELSE logic in a SELECT statement - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Apply the NVL, NULLIF, and COALESCE functions to data - Describe implicit and explicit data type conversion |
| Creating Other Schema Objects | 10% | - Create, maintain, and use sequences - Create and maintain indexes - Create synonyms for database objects - Create, modify, and retrieve data from a view |
| Controlling User Access | 5% | - Differentiate system privileges from object privileges - Grant privileges on tables and on a view - Distinguish between granting privileges and roles |
| 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 |
| 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 |
| Using DDL Statements to Create and Manage Tables | 14% | - Describe the data types that are available for columns - Categorize the main database objects - Review the table structure - Alter table definitions - Drop, rename, and truncate tables - Create a simple table |
| 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 |
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NEW QUESTION # 58
Evaluate the following SQL commands:
The command to create a table fails. Identify the reason for the SQL statement failure.
Answer: D
NEW QUESTION # 59
Examine the description of the PRODUCT_STATUS table:
The STATUS column contains the values 'IN STOCK' or 'OUT OF STOCK' for each row Which two queries will execute successfully?
Answer: A,D
NEW QUESTION # 60
Which two statements are true about the results of using the intersect operator in compound queries?
Answer: B,D
NEW QUESTION # 61
View the Exhibit and examine the structure of ORDERS and CUSTOMERS tables.
(Choose the best answer.)
You executed this UPDATE statement:
UPDATE
( SELECT order_date, order_total, customer_id FROM orders)
Set order_date = '22-mar-2007'
WHERE customer_id IN
(SELECT customer_id FROM customers
WHERE cust_last_name = 'Roberts' AND credit_limit = 600);
Which statement is true regarding the execution?
Answer: C
NEW QUESTION # 62
Which two statements are true about transactions in the Oracle Database server?
Answer: A,E
NEW QUESTION # 63
......
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