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Instant Download Oracle : 1Z1-047 Questions & Answers as PDF & Test Engine
- Exam Code: 1Z1-047
- Exam Name: Oracle Database SQL Expert
- Updated: Oct 13, 2026
- No. of Questions: 264 Questions and Answers
- Download Limit: Unlimited
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Oracle 1Z1-047 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Introduction to SQL and Relational Concepts | 8% | - Relational database fundamentals - SQL SELECT statements |
| Group Functions and Aggregation | 10% | - AVG, SUM, COUNT, MAX, MIN - ROLLUP, CUBE, and GROUPING functions - GROUP BY and HAVING clauses |
| Data Manipulation Language (DML) | 10% | - INSERT, UPDATE, DELETE statements - Transactions and COMMIT/ROLLBACK/SAVEPOINT |
| Restricting and Sorting Data | 10% | - ORDER BY sorting - Logical operators - WHERE clause conditions |
| Subqueries and Set Operators | 12% | - UNION, UNION ALL, INTERSECT, MINUS - WITH clause - Correlated subqueries and EXISTS - Single-row and multi-row subqueries |
| Displaying Data from Multiple Tables | 12% | - ANSI/ISO SQL syntax - Equijoins and non-equijoins - Outer joins and self joins |
| Data Definition Language (DDL) and Schema Objects | 12% | - Views, sequences, synonyms - CREATE/ALTER/DROP tables - Data dictionary views - Constraints and indexes |
| Advanced SQL Features | 14% | - User access control and privileges - Large data types - Regular expression support - Hierarchical queries |
| Single-Row Functions | 12% | - Character, number, and date functions - Conversion functions - General functions and conditional expressions |
1Z1-047 Exam Details and Candidate Protections
Oracle specifies the following prerequisites for the Oracle Database SQL Expert: No mandatory prerequisites; recommended basic SQL knowledge.
Confirm the authoritative details on the official certification page before you register.
As of the latest information, the passing score for the 1Z1-047 exam is 66% and the fee is USD 245 (varies by region). Oracle sets both, so verify the current figures on the official site before scheduling.
Written and dependable. 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 are refunded in full 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 preparing? Exchange your product for two others of equal value at no charge.
The Oracle Database SQL Expert blueprint centers on these principal domains:
- Displaying Data from Multiple Tables (12%)
- Group Functions and Aggregation (10%)
- Restricting and Sorting Data (10%)
Further domains complete the official outline, and our question bank spans every one.
By understanding the constraint first: most of our candidates are office workers, so the 1Z1-047 bank is elaborately designed for efficiency — focused content with expert-verified answers across the Oracle Database SQL Expert objectives, no filler. Safety is engineered in too: payment runs through Credit Card, the world's reliable payment platform, safeguarding the transaction and protecting your interests, so you can buy without misgivings. And because an electronic product cannot be touched before purchase, a free trial download of real bank content lets you see it first — with 24/7 customer service agents ready for any contingency afterward.
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According to the latest exam information, the 1Z1-047 exam includes 70 questions and lasts 120 minutes minutes. Practicing under the same limit builds the pacing confidence you will want on the day.
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Oracle Database SQL Expert Sample Questions:
Which view would you use to display the column names and DEFAULT values for a table?
- A. USER TAB COLUMNS
- B. USER_COLUMNS
- C. DBA_TABLES
- D. DBA_COLUMNS
Correct Answer: A 🗳️
View the Exhibit and examine the table structure of DEPARTMENTS and LOCATIONS tables.
You want to display all the cities that have no departments and the departments that have not been allocated cities.
Which type of join between DEPARTMENTS and LOCATIONS tables would produce this information as part of its output?
- A. LEFT OUTER JOIN
- B. FULL OUTER JOIN
- C. RIGHT OUTER JOIN
- D. NATURAL JOIN
Correct Answer: B 🗳️
Evaluate the following SQL statement:
SELECT product_name || 'it's not available for order'
FROM product_information
WHERE product_status = 'obsolete';
You received the following error while executing the above query:
ERROR:
ORA-01756: quoted string not properly terminated
What would you do to execute the query successfully?
- A. Use escape character to negate the single quotation mark inside the literal character string in the SELECT clause.
- B. Enclose the character literal string in the SELECT clause within the double quotation marks.
- C. Use Quote (q) operator and delimiter to allow the use of single quotation mark in the literal character string.
- D. Do not enclose the character literal string in the SELECT clause within the single quotation marks.
Correct Answer: C 🗳️
View the Exhibit and examine the description of the ORDER_ITEMS table. The following SQL statement was written to retrieve the rows for the PRODUCT_ID that has a
UNIT_PRICE of more than 1,000 and has been ordered more than five times: SELECT product_id, COUNT(order_id) total, unit_price
FROM order_items
WHERE unit_price>1000 AND COUNT(order_id)>5
GROUP BY product_id, unit_price;
Which statement is true regarding this SQL statement?
- A. The statement would not execute because the aggregate function is used in the WHERE clause.
- B. The statement would not execute because the WHERE clause should have the OR logical operator instead of AND.
- C. The statement would not execute because in the SELECT clause, the UNIT_PRICE column is placed after the column having the aggregate function.
- D. The statement would execute and give you the desired result.
Correct Answer: A 🗳️
Which three statements are true regarding group functions? (Choose three.)
- A. They can be used on only one column in the SELECT clause of a SQL statement.
- B. They can be used on columns or expressions.
- C. They can be passed as an argument to another group function.
- D. They can be used along with the single-row function in the SELECT clause of a SQL statement.
- E. They can be used only with a SQL statement that has the GROUP BY clause.
Correct Answer: B,C,D 🗳️
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