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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Displaying Data from Multiple Tables Using Joins | 15% | - View data that does not meet a join condition by using outer joins - Cross join tables - 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 |
| Topic 2: 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 |
| Topic 3: Controlling User Access | 5% | - Differentiate system privileges from object privileges - Distinguish between granting privileges and roles - Grant privileges on tables and on a view |
| Topic 4: Working with Oracle Database SQL | 8% | - Create a container database - Start up and shut down a database - Describe the Oracle Database architecture - Explain the installation of Oracle Database software |
| Topic 5: Using DDL Statements to Create and Manage Tables | 14% | - Describe the data types that are available for columns - Review the table structure - Create a simple table - Drop, rename, and truncate tables - Alter table definitions - Categorize the main database objects |
| Topic 6: Creating Other Schema Objects | 10% | - Create, maintain, and use sequences - Create, modify, and retrieve data from a view - Create and maintain indexes - Create synonyms for database objects |
| Topic 7: 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 - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Describe implicit and explicit data type conversion |
| Topic 8: Retrieving Data Using the SQL SELECT Statement | 5% | - List the capabilities of SQL SELECT statements - Differentiate between SQL statements and SQL*Plus commands - Execute a basic SELECT statement |
| Topic 9: Using Subqueries to Solve Queries | 15% | - List the types of subqueries - Write single-row and multi-row subqueries - Define subqueries - Describe the types of problems that subqueries can solve |
| Topic 10: Restricting and Sorting Data | 6% | - Sort the rows that are retrieved by a query - Use ampersand substitution to restrict and sort output at runtime - Limit the rows that are retrieved by a query - Use DEFINE and UNDEFINE commands |
| Topic 11: Manipulating Data | 14% | - Describe each data manipulation language (DML) statement - Insert rows into a table - Update rows in a table - Delete rows from a table - Control transactions |
| Topic 12: Reporting Aggregated Data Using Group Functions | 15% | - Group data by using the GROUP BY clause - Identify the available group functions - Include or exclude grouped rows by using the HAVING clause - Describe the use of group functions |
| Topic 13: 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 - Perform arithmetic with date data - Describe the differences between single-row and multiple-row functions - Manipulate numbers with the ROUND, TRUNC, and MOD functions |
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NEW QUESTION # 428
Examine the description of the CUSTOMERS table:
You need to display last names and credit limits of all customers whose last name starts with A or B in lower or upper case, and whose credit limit is below 1000.
Examine this partial query:
Which two WHERE conditions give the required result?
Answer: C,D
NEW QUESTION # 429
Which two statements are true about the data dictionary?
Answer: B,D
Explanation:
The data dictionary contains metadata (data about data) about the database and its objects.
A). False. DBA_ views display metadata for objects accessible to the database administrator, not only for the SYS schema.
B). True. ALL_ views display information about all the objects that the current user has access to. This does not necessarily mean the user has privileges on these objects, only that the user can see them.
C). False. The data dictionary is not accessible when the database is closed because it requires the database to be open in order to access the system tables.
D). True. Not all types of metadata are available in all three prefixes (ALL_, DBA_, USER_). Some specific metadata might only be available in one or two of these view types.
E). False. The data dictionary stores metadata in tables. The various views (ALL_, DBA_, USER_, etc.) provide different perspectives on this data.
References:
* Oracle Documentation on Data Dictionary and Dynamic Performance Views:
https://docs.oracle.com/cd/B28359_01/server.111/b28310/datadict.htm
NEW QUESTION # 430
View the Exhibit and examine the structure of the CUSTOMERStable.
CUSTOMER_VUis a view based on CUSTOMERS_BR1 table which has the same structure as CUSTOMERStable.
CUSTOMERSneed to be updated to reflect the latest information about the customers.
What is the error in the following MERGEstatement?
Answer: C
Explanation:
Explanation/Reference:
NEW QUESTION # 431
Examine the description of the ORDERStable:
Examine the description of the INVOICEStable:
Examine this query:
Which three rows will it return? (Choose three.)
5 01-MAR-2019
Answer: E,F,G
NEW QUESTION # 432
Examine the structure of the PROGRAMS table:
Which two SQL statements would execute successfully? (Choose two.)
Answer: B,D
NEW QUESTION # 433
......
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