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| Section | Objectives |
|---|---|
| Topic 1: Using DML Statements | - Use the MERGE statement - Insert rows into a table - Control transactions - Update rows in a table - Delete rows from a table |
| Topic 2: Using DDL Statements | - Create and manage constraints - Create and manage sequences - Create and manage views - Create and manage indexes - Create and manage tables |
| Topic 3: Using Subqueries | - Use single-row subqueries - Use correlated subqueries - Use multiple-row subqueries |
| Topic 4: Using SELECT Statements | - Use the FETCH clause to limit rows returned - Use the ORDER BY clause to sort rows - Execute a basic SELECT statement - Use the WHERE clause to restrict rows |
| Topic 5: Using Joins | - Use cross joins - Use outer joins (LEFT, RIGHT, FULL) - Use self-joins - Use equijoins and non-equijoins |
| 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: Controlling User Access | - Create and manage roles - Differentiate system privileges from object privileges - Grant and revoke privileges |
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NEW QUESTION # 96
Which type of join includes rows that do not have matching values in the joined table?
Answer: D
NEW QUESTION # 97
What happens if a DELETE statement is executed without a WHERE clause?
Answer: A
NEW QUESTION # 98
What does the following SQL statement do?
ALTER TABLE employees DROP COLUMN salary;
Answer: D
NEW QUESTION # 99
What will the following query return?
SELECT TO_CHAR(SYSDATE, 'DD-MM-YYYY') AS formatted_date FROM dual;
Answer: B
NEW QUESTION # 100
What does the following SQL query do?
SELECT * FROM employees WHERE salary > 5000 ORDER BY department_id;
Answer: C
NEW QUESTION # 101
......
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