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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Using SQL Functions | - Use character, number, and date functions in SELECT statements - Use conversion functions |
| Topic 2: Using SELECT Statements | - Use the FETCH clause to limit rows returned - Use the ORDER BY clause to sort rows - Execute a basic SELECT statement - Use the WHERE clause to restrict rows |
| Topic 3: Using Joins | - Use cross joins - Use outer joins (LEFT, RIGHT, FULL) - Use equijoins and non-equijoins - Use self-joins |
| Topic 4: 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 5: Using Subqueries | - Use correlated subqueries - Use single-row subqueries - Use multiple-row subqueries |
| Topic 6: Using DDL Statements | - Create and manage tables - Create and manage sequences - Create and manage indexes - Create and manage constraints - Create and manage views |
| Topic 7: Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
| Topic 8: Controlling User Access | - Differentiate system privileges from object privileges - Create and manage roles - Grant and revoke privileges |
Oracle Database 23ai SQL Associate Sample Questions:
Question 1
What will the following SQL query return?
SELECT TRUNC(15.678, 2) AS truncated_value FROM dual;
A. 15.6
B. 15.68
C. 15.678
D. 15.67
Question 2
Which command can be used to rename a table in Oracle Database?
A. ALTER TABLE RENAME
B. RENAME TABLE
C. RENAME
D. MODIFY TABLE NAME
Question 3
How is the LOCALTIMESTAMP function different from CURRENT_TIMESTAMP?
A. LOCALTIMESTAMP returns only the date, while CURRENT_TIMESTAMP returns the date and time.
B. LOCALTIMESTAMP does not include fractional seconds, while CURRENT_TIMESTAMP does.
C. LOCALTIMESTAMP omits time zone information, while CURRENT_TIMESTAMP includes it.
D. Both functions are identical in output.
Question 4
Which of the following can be achieved using a correlated subquery?
A. Retrieving duplicate records from a single table
B. Joining two tables without a common column
C. Inserting data into a table
D. Comparing each employee's salary to the average salary of their department
Question 5
Which data dictionary view provides information about all the columns in tables accessible to the current user?
A. DBA_TAB_COLUMNS
B. ALL_TAB_COLUMNS
C. ALL of the above
D. USER_COLUMNS
Solutions:
| Question 1 Answer: D | Question 2 Answer: C | Question 3 Answer: C | Question 4 Answer: D | Question 5 Answer: C |
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