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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Objectives |
| Topic 1: Using DML Statements | - Control transactions
- Delete rows from a table
- Update rows in a table
- Insert rows into a table
- Use the MERGE statement
|
| Topic 2: Using DDL Statements | - Create and manage views
- Create and manage sequences
- Create and manage tables
- Create and manage constraints
- Create and manage indexes
|
| Topic 3: Using SQL Functions | - Use character, number, and date functions in SELECT statements
- Use conversion functions
|
| Topic 4: Controlling User Access | - Differentiate system privileges from object privileges
- Grant and revoke privileges
- Create and manage roles
|
| Topic 5: Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators
|
| Topic 6: Using Joins | - Use self-joins
- Use cross joins
- Use outer joins (LEFT, RIGHT, FULL)
- Use equijoins and non-equijoins
|
| Topic 7: Using Subqueries | - Use correlated subqueries
- Use single-row subqueries
- Use multiple-row subqueries
|
| Topic 8: Using SELECT Statements | - Use the ORDER BY clause to sort rows
- Execute a basic SELECT statement
- Use the WHERE clause to restrict rows
- Use the FETCH clause to limit rows returned
|
Oracle Database 23ai SQL Associate Sample Questions:
Question 1
Which type of join retrieves only the rows with matching values in both tables?
A. OUTER JOIN
B. NATURAL JOIN
C. CROSS JOIN
D. INNER JOIN
Question 2
What does the NEXTVAL pseudocolumn do in SQL?
A. Retrieves the next value in a sequence and increments the sequence
B. Retrieves the current value of a sequence without incrementing it
C. Deletes the sequence from the database
D. Resets the sequence to its starting value
Question 3
Which data dictionary view provides information about all tables accessible to the current user?
A. SESSION_TABLES
B. DBA_TABLES
C. USER_TABLES
D. ALL_TABLES
Question 4
Which SQL function calculates the number of months between two dates?
Response:
A. MONTHS_BETWEEN
B. DATE_CALC
C. DATE_DIFF
D. TIME_DIFF
Question 5
What is the purpose of the MERGE statement in SQL?
A. To combine the results of two queries
B. To delete duplicate rows from a table
C. To update existing rows or insert new rows in a target table
D. To join two tables into one
Solutions:
Question 1 Answer: D | Question 2 Answer: A | Question 3 Answer: D | Question 4 Answer: A | Question 5 Answer: C |