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| Section | Objectives |
|---|---|
| Using DML Statements | - Use the MERGE statement - Delete rows from a table - Update rows in a table - Insert rows into a table - Control transactions |
| Controlling User Access | - Grant and revoke privileges - Differentiate system privileges from object privileges - Create and manage roles |
| Using SQL Functions | - Use character, number, and date functions in SELECT statements - Use conversion functions |
| 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 |
| Using Subqueries | - Use multiple-row subqueries - Use correlated subqueries - Use single-row subqueries |
| Using Joins | - Use outer joins (LEFT, RIGHT, FULL) - Use equijoins and non-equijoins - Use self-joins - Use cross joins |
| Using DDL Statements | - Create and manage tables - Create and manage sequences - Create and manage indexes - Create and manage constraints - Create and manage views |
| Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
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NEW QUESTION # 53
Which data dictionary view provides information about all tables accessible to the current user?
Answer: A
NEW QUESTION # 54
What will the following query return?
SELECT TO_CHAR(SYSDATE, 'DD-MM-YYYY') AS formatted_date FROM dual;
Answer: B
NEW QUESTION # 55
What is required for the queries combined by a SET operator to work correctly?
Answer: C
NEW QUESTION # 56
Which type of join returns all rows from the left table, even if there are no matches in the right table?
Answer: D
NEW QUESTION # 57
What does the INTERSECT operator do in SQL?
Answer: A
NEW QUESTION # 58
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