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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Controlling User Access | - Differentiate system privileges from object privileges - Create and manage roles - Grant and revoke privileges |
| Using Joins | - Use cross joins - Use self-joins - Use equijoins and non-equijoins - Use outer joins (LEFT, RIGHT, FULL) |
| Using DDL Statements | - Create and manage views - Create and manage constraints - Create and manage indexes - Create and manage sequences - Create and manage tables |
| Using DML Statements | - Use the MERGE statement - Control transactions - Insert rows into a table - Delete rows from a table - Update rows in a table |
| Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
| Using Subqueries | - Use single-row subqueries - Use multiple-row subqueries - Use correlated subqueries |
| Using SQL Functions | - Use character, number, and date functions in SELECT statements - Use conversion functions |
| Using SELECT Statements | - Use the WHERE clause to restrict rows - Execute a basic SELECT statement - Use the FETCH clause to limit rows returned - Use the ORDER BY clause to sort rows |
Oracle Database 23ai SQL Associate Sample Questions:
1. Which of the following data dictionary views provides information about constraints on tables?
A) All of the above
B) ALL_CONSTRAINTS
C) DBA_CONSTRAINTS
D) USER_CONSTRAINTS
2. Which clause in an UPDATE statement typically uses a subquery to assign values to columns?
A) SET
B) WHERE
C) FROM
D) HAVING
3. Which of the following ensures that a relational database enforces data integrity?
A) Indexes on all columns
B) Constraints such as primary keys, foreign keys, and unique constraints
C) Redundant data storage
D) Hierarchical data organization
4. Which SQL keyword is used to remove duplicate rows from the result set of a query?
A) UNIQUE
B) DISTINCT
C) ONLY
D) DISTINCTROW
5. What will the following query return?
SELECT TO_CHAR(SYSDATE, 'DD-MM-YYYY') AS formatted_date FROM dual;
A) The time part of the current date
B) The current date in the default system format
C) The current date in the format 'DD-MM-YYYY'
D) An error
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A | Question # 3 Answer: B | Question # 4 Answer: B | Question # 5 Answer: C |
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