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| Section | Objectives |
|---|---|
| Topic 1: Using DDL Statements | - Create and manage constraints - Create and manage sequences - Create and manage views - Create and manage tables - Create and manage indexes |
| Topic 2: Using DML Statements | - Insert rows into a table - Delete rows from a table - Control transactions - Update rows in a table - Use the MERGE statement |
| Topic 3: Using SQL Functions | - Use character, number, and date functions in SELECT statements - Use conversion functions |
| Topic 4: Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
| Topic 5: Using Subqueries | - Use single-row subqueries - Use correlated subqueries - Use multiple-row subqueries |
| Topic 6: Using SELECT Statements | - Use the ORDER BY clause to sort rows - Use the FETCH clause to limit rows returned - Execute a basic SELECT statement - Use the WHERE clause to restrict rows |
| Topic 7: Controlling User Access | - Differentiate system privileges from object privileges - Create and manage roles - Grant and revoke privileges |
| Topic 8: Using Joins | - Use equijoins and non-equijoins - Use outer joins (LEFT, RIGHT, FULL) - Use cross joins - Use self-joins |
>> 1Z1-171 Real Testing Environment <<
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NEW QUESTION # 79
What does the following query return?
SELECT department_id FROM departments
INTERSECT
SELECT department_id FROM employees;
Answer: D
NEW QUESTION # 80
Which SET operator returns rows from the first query that are not present in the second query?
Answer: C
NEW QUESTION # 81
What is the purpose of the MERGE statement in SQL?
Answer: C
NEW QUESTION # 82
Which command would drop an index from a table?
Answer: A
NEW QUESTION # 83
How is the LOCALTIMESTAMP function different from CURRENT_TIMESTAMP?
Answer: A
NEW QUESTION # 84
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