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| Section | Objectives |
|---|---|
| Topic 1: Using Subqueries | - Use multiple-row subqueries - Use correlated subqueries - Use single-row subqueries |
| Topic 2: Using DML Statements | - Update rows in a table - Use the MERGE statement - Delete rows from a table - Control transactions - Insert rows into a table |
| Topic 3: Using DDL Statements | - Create and manage views - Create and manage sequences - Create and manage indexes - Create and manage constraints - Create and manage tables |
| Topic 4: Using SELECT Statements | - Use the ORDER BY clause to sort rows - Use the WHERE clause to restrict rows - Use the FETCH clause to limit rows returned - Execute a basic SELECT statement |
| Topic 5: Controlling User Access | - Create and manage roles - Grant and revoke privileges - Differentiate system privileges from object privileges |
| Topic 6: Using SQL Functions | - Use conversion functions - Use character, number, and date functions in SELECT statements |
| Topic 7: Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
| Topic 8: Using Joins | - Use cross joins - Use equijoins and non-equijoins - Use outer joins (LEFT, RIGHT, FULL) - Use self-joins |
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NEW QUESTION # 65
Which Oracle SQL function returns the current date and time, including time zone information?
Answer: C
NEW QUESTION # 66
Which SQL function can be used to replace NULL values with a specified value?
Answer: D
NEW QUESTION # 67
Which of the following can be achieved using a correlated subquery?
Answer: C
NEW QUESTION # 68
How does SQL handle NULL values in arithmetic expressions?
Answer: B
NEW QUESTION # 69
What will the following query return?
SELECT EXTRACT(YEAR FROM CURRENT_DATE) AS year FROM dual;
Answer: A
NEW QUESTION # 70
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