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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Using Subqueries to Solve Queries | 15% | - Write single-row and multi-row subqueries - Define subqueries - Describe the types of problems that subqueries can solve - List the types of subqueries |
| Topic 2: Using Single-Row Functions to Customize Output | 10% | - Perform arithmetic with date data - Manipulate dates with the date functions - Manipulate numbers with the ROUND, TRUNC, and MOD functions - Manipulate strings with character function in the SELECT and WHERE clauses - Describe the differences between single-row and multiple-row functions |
| Topic 3: Retrieving Data Using the SQL SELECT Statement | 5% | - List the capabilities of SQL SELECT statements - Execute a basic SELECT statement - Differentiate between SQL statements and SQL*Plus commands |
| Topic 4: Controlling User Access | 5% | - Grant privileges on tables and on a view - Distinguish between granting privileges and roles - Differentiate system privileges from object privileges |
| Topic 5: Using Set Operators | 5% | - Describe the order of precedence when the set operators are used - Use a set operator to combine multiple queries into a single query - Describe set operators |
| Topic 6: 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 7: Manipulating Data | 14% | - Insert rows into a table - Update rows in a table - Describe each data manipulation language (DML) statement - Control transactions - Delete rows from a table |
| Topic 8: 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 |
| Topic 9: Creating Other Schema Objects | 10% | - Create, maintain, and use sequences - Create synonyms for database objects - Create and maintain indexes - Create, modify, and retrieve data from a view |
| Topic 10: 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 11: 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 12: Using DDL Statements to Create and Manage Tables | 14% | - Create a simple table - Categorize the main database objects - Review the table structure - Alter table definitions - Drop, rename, and truncate tables - Describe the data types that are available for columns |
| Topic 13: Restricting and Sorting Data | 6% | - Use ampersand substitution to restrict and sort output at runtime - Sort the rows that are retrieved by a query - Use DEFINE and UNDEFINE commands - Limit the rows that are retrieved by a query |
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NEW QUESTION # 67
Examine the description of the CUSTOMERStable:
CUSTNOis the PRIMARY KEY.
You must determine if any customers' details have been entered more than once using a different CUSTNO, by listing all duplicate names.
Which two methods can you use to get the required result? (Choose two.)
Answer: A,C
NEW QUESTION # 68
Examine the structure of the PROMOTIONS table: (Choose the best answer.)
Management requires a report of unique promotion costs in each promotion category.
Which query would satisfy this requirement?
Answer: D
NEW QUESTION # 69
Evaluate the following ALTER TABLEstatement:
ALTER TABLE orders
SET UNUSED (order_date);
Which statement is true?
Answer: C
NEW QUESTION # 70
Which two statements are true regarding savepoints? (Choose two.)
Answer: B,E
Explanation:
Explanation/Reference:
Reference: https://docs.oracle.com/cd/B19306_01/server.102/b14200/
statements_10001.htm#SQLRF01701
NEW QUESTION # 71
Examine the description of the PRODUCTS table:
Which two statements execute without errors?
Answer: B
Explanation:
B: True. This MERGE statement should execute without errors. It uses a conditionally filtered selection from the products table as a source to update or delete rows in the new_prices table based on whether the prod_id matches and the cost is greater than 150. The delete operation within a MERGE statement is allowed in Oracle when a WHEN MATCHED clause is specified.
The MERGE statement is correctly structured with a USING clause that includes a subquery with a valid WHERE condition, an ON condition that specifies how to match rows between the source and the target, and a WHEN MATCHED THEN clause that specifies the update and delete operations based on the cost condition.
References:Oracle SQL documentation specifies that within a MERGE statement, you can specify a WHEN MATCHED clause to update and/or delete rows in the target table based on the condition specified after the DELETE keyword.
NEW QUESTION # 72
......
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