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| Section | Objectives |
|---|---|
| Topic 1: Using DML Statements | - Control transactions - Update rows in a table - Insert rows into a table - Use the MERGE statement - Delete rows from a table |
| Topic 2: Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
| Topic 3: Using SQL Functions | - Use conversion functions - Use character, number, and date functions in SELECT statements |
| Topic 4: Using Subqueries | - Use single-row subqueries - Use correlated subqueries - Use multiple-row subqueries |
| Topic 5: Using Joins | - Use self-joins - Use cross joins - Use outer joins (LEFT, RIGHT, FULL) - Use equijoins and non-equijoins |
| Topic 6: Using DDL Statements | - Create and manage tables - Create and manage constraints - Create and manage sequences - Create and manage views - Create and manage indexes |
| Topic 7: Controlling User Access | - Differentiate system privileges from object privileges - Grant and revoke privileges - Create and manage roles |
| Topic 8: Using SELECT Statements | - Execute a basic SELECT statement - Use the ORDER BY clause to sort rows - Use the FETCH clause to limit rows returned - Use the WHERE clause to restrict rows |
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NEW QUESTION # 26
Which type of subquery returns exactly one value?
Answer: D
NEW QUESTION # 27
Which SQL keyword is used to define a substitution variable in a SQL statement?
Answer: D
NEW QUESTION # 28
What is the relationship between SQL and a relational database?
Answer: B
NEW QUESTION # 29
What happens when the maximum value of a sequence is reached?
Answer: D
NEW QUESTION # 30
What does the UNION ALL operation do when selecting matching columns from different tables?
SELECT employee_id, salary FROM employees
UNION ALL
SELECT employee_id, bonus FROM bonuses;
Answer: C
NEW QUESTION # 31
......
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