Oracle 1Z0-047 real exam prep : Oracle Database SQL Expert
- Exam Code: 1Z0-047
- Exam Name: Oracle Database SQL Expert
- Updated: Sep 14, 2026
- Q&As: 264 Questions and Answers
About Oracle 1Z0-047 Real Exam
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Oracle 1Z0-047 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Oracle Database SQL Expert |
| Exam Number: | 1Z0-047 |
| Exam Format: | Multiple Choice, Multiple Response |
| Available Languages: | Spanish, German, English, Japanese |
| Real Exam Qty: | 70 |
| Certificate Validity Period: | Typically 3 years (depends on Oracle policy) |
| Exam Duration: | 120 minutes |
| Exam Price: | Approximately USD 195 (varies by region) |
| Passing Score: | Not publicly disclosed (Oracle doesn’t publish exact pass marks) |
| Related Certifications: | Oracle Database SQL Fundamentals I (1Z0-051) |
| Sample Questions: |  |
| Exam Way: | Onsite at Pearson VUE or online proctored delivery |
| Pre Condition: | No formal prerequisite, but SQL Fundamentals knowledge recommended |
| Official Syllabus URL: | https://www.oracle.com/education/certification/ |
Oracle 1Z0-047 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Using Subqueries | - Define and use various subquery types - Correlated subqueries and WITH clause |
| Topic 2: Regular Expression Support | - Using regular expressions in SQL |
| Topic 3: Reporting Aggregated Data | - HAVING clause usage - Group functions and GROUP BY |
| Topic 4: Displaying Data from Multiple Tables | - Joins (inner, outer, self) - Cartesian products |
| Topic 5: Manipulating Data | - INSERT, UPDATE, DELETE - Transaction control |
| Topic 6: Using DDL Statements | - Create and manage tables - Understand data types and constraints |
| Topic 7: Managing Objects with Data Dictionary Views | - Use data dictionary views |
| Topic 8: Controlling User Access | - Granting roles and privileges - System and object privileges |
| Topic 9: Generating Reports by Grouping Related Data | - ROLLUP and CUBE operations - GROUPING SETS |
| Topic 10: Hierarchical Retrieval | - CONNECT BY and tree-structured queries |
| Topic 11: Retrieving Data Using the SQL SELECT Statement | - Understand schema object behavior - Execute basic SELECT statements - List capabilities of SQL SELECT |
| Topic 12: Using Single-Row Functions | - Conversion functions - Character, number, and date functions |
| Topic 13: Managing Data in Different Time Zones | - Datetime functions and timezone handling |
| Topic 14: Using Set Operators | - UNION, INTERSECT, MINUS - Control order of result sets |
| Topic 15: Restricting and Sorting Data | - Limit rows returned - Sort query results |
| Topic 16: Creating and Managing Schema Objects | - Views, sequences, and indexes - Private and public synonyms |
| Topic 17: Manipulating Large Data Sets | - Flashback query usage - Multitable INSERTs and MERGE |
Everything About the 1Z0-047 Exam and Our Materials
Written terms, promptly honored. If you fail the corresponding exam within 60 days of purchase, send us a scanned copy of your enrollment slip and your official Score Report PDF within two days of the exam date; verified claims receive a full refund within seven days. Exclusions: exams taken within three days of purchase, candidate names that differ from the payer, and free or expired products. Prefer to keep studying? We will exchange your product for two others of equal value at no cost.
Currently, the 1Z0-047 exam requires a passing score of Not publicly disclosed (Oracle doesn’t publish exact pass marks) and carries a registration fee of Approximately USD 195 (varies by region). Oracle can revise either figure, so confirm both on the official site before you schedule.
Because every step is built to save time. The 1Z0-047 bank is carefully made — expert-verified answers across the Oracle Database SQL Expert objectives, organized for efficient study rather than endless reading. Delivery is instant upon payment, updates are free for 365 days and arrive by email automatically, and our customer service team is online 24 hours to give fast, precise replies whenever a question about the materials comes up. Efficiency is the design goal, from first click to exam day.
The Oracle Database SQL Expert blueprint is structured around these main domains:
- Manipulating Large Data Sets
- Managing Data in Different Time Zones
- Managing Objects with Data Dictionary Views
Further domains complete the official outline; the question bank spans every one.
Per the latest exam information, the 1Z0-047 exam includes 70 questions and allows 120 minutes minutes. Rehearsing under the same limit at home removes one more unknown from exam day.
Upon successful payment, our system automatically emails the product to your mailbox — typically within about a minute — with an instant download link on screen, so you can start studying right away. If nothing arrives within two hours, check your spam folder and contact our 24-hour support team. Installations are unlimited, and your purchase includes 365 days of free updates delivered by email, plus a 50% renewal discount afterward.
Oracle lists these prerequisites for the Oracle Database SQL Expert: No formal prerequisite, but SQL Fundamentals knowledge recommended.
Confirm the current requirements on the official certification page before registering.
Oracle Database SQL Expert Sample Questions:
Which two statements are true regarding the execution of the correlated subqueries? (Choose two.)
- A. Each row returned by the outer query is evaluated for the results returned by the inner query.
- B. The nested query executes first and then the outer query executes.
- C. The nested query executes after the outer query returns the row.
- D. The outer query executes only once for the result returned by the inner query.
Correct Answer: A,C 🗳️
Which statements are true regarding the hierarchical query in Oracle Database 10g? (Choose all
that apply.)
- A. It is possible to retrieve data in top-down or bottom-up hierarchy.
- B. You cannot specify conditions when you retrieve data by using a hierarchical query.
- C. It is possible to remove an entire branch from the output of the hierarchical query.
- D. It is possible to retrieve data only in top-down hierarchy.
Correct Answer: A,C 🗳️
Which two statements are true regarding constraints? (Choose two.)
- A. All the constraints can be defined at the column level as well as the table level
- B. A foreign key cannot contain NULL values.
- C. A constraint is enforced only for the INSERT operation on a table.
- D. A constraint can be disabled even if the constraint column contains data.
- E. A column with the UNIQUE constraint can contain NULL.
Correct Answer: D,E 🗳️
View the Exhibit and examine the data in ORDERS_MASTER and MONTHLY_ORDERS tables.
Evaluate the following MERGE statement:
MERGE INTO orders_master o USING monthly_orders m ON (o.order_id = m.order_id) WHEN MATCHED THEN UPDATE SET o.order_total = m.order_total DELETE WHERE (m.order_total IS NULL) WHEN NOT MATCHED THEN INSERT VALUES (m.order_id, m.order_total);
What would be the outcome of the above statement?
- A. The ORDERS_MASTER table would contain the ORDER IDs 1,2,3 and 4.
- B. The ORDERS_MASTER table would contain the ORDER_IDs 1,2 and 3.
- C. The ORDERS_MASTER table would contain the ORDER_IDs 1 and 2.
- D. The ORDERS_MASTER table would contain the ORDER_IDs 1,2 and 4.
Correct Answer: D 🗳️
View the Exhibit and examine the descriptions of the DEPT and LOCATIONS tables. You want to update the CITY column of the DEPT table for all the rows with the corresponding
value in the CITY column of the LOCATIONS table for each department. Which SOL statement would you execute to accomplish the task?
- A. UPDATE deptd
SET city = ALL (SELECT city
FROM locations I
WHERE d.location_id = l.location_id); - B. UPDATE deptd
SET city = (SELECT city
FROM locations I)
WHERE d.location_id = l.location_id; - C. UPDATE deptd
SET city = ANY (SELECT city FROM locations I); - D. UPDATE deptd
SET city = (SELECT city
FROM locations I
WHERE d.location_id = l.location_id);
Correct Answer: D 🗳️
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