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| Section | Objectives |
|---|---|
| Topic 1: Using DML Statements | - Insert rows into a table - Update rows in a table - Delete rows from a table - Use the MERGE statement - Control transactions |
| Topic 2: Controlling User Access | - Grant and revoke privileges - Create and manage roles - Differentiate system privileges from object privileges |
| Topic 3: Using DDL Statements | - Create and manage sequences - Create and manage views - Create and manage indexes - Create and manage tables - Create and manage constraints |
| Topic 4: Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
| Topic 5: Using SELECT Statements | - Execute a basic SELECT statement - Use the WHERE clause to restrict rows - Use the FETCH clause to limit rows returned - Use the ORDER BY clause to sort rows |
| Topic 6: Using Joins | - Use outer joins (LEFT, RIGHT, FULL) - Use cross joins - Use self-joins - Use equijoins and non-equijoins |
| Topic 7: Using SQL Functions | - Use character, number, and date functions in SELECT statements - Use conversion functions |
| Topic 8: Using Subqueries | - Use single-row subqueries - Use multiple-row subqueries - Use correlated subqueries |
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NEW QUESTION # 62
What is a SELF JOIN in SQL?
Answer: A
NEW QUESTION # 63
Which SET operator returns rows from the first query that are not present in the second query?
Answer: D
NEW QUESTION # 64
What will the following query result in?
SELECT e.employee_id, e.manager_id
FROM employees e
WHERE e.manager_id IS NOT NULL;
Answer: B
NEW QUESTION # 65
What does the INTERSECT operator do in SQL?
Answer: D
NEW QUESTION # 66
Which SQL statement is used to insert a new row into a table?
Answer: B
NEW QUESTION # 67
......
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