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Oracle 1Z0-007 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Relational Database and SQL Fundamentals | - Understanding relational database concepts - SQL language overview |
| Topic 2: Data Retrieval Using SQL | - Filtering data with WHERE clause - Sorting results with ORDER BY - SELECT statements |
| Topic 3: Single-Row Functions | - Number functions - Conversion functions - Date functions - Character functions |
| Topic 4: Group Functions and Aggregation | - GROUP BY clause - Aggregate functions (COUNT, SUM, AVG, MIN, MAX) - HAVING clause |
| Topic 5: Data Manipulation and Schema Objects | - Constraints and integrity rules - CREATE, ALTER, DROP statements - INSERT, UPDATE, DELETE statements |
| Topic 6: Joins and Subqueries | - Equijoins and non-equijoins - Subqueries (single-row and multi-row) - Outer joins |
| Topic 7: Advanced SQL Concepts | - Pseudocolumns and expressions - Set operators (UNION, INTERSECT, MINUS) |
Oracle Introduction to Oracle9i: SQL Sample Questions:
You define a multiple-row subquery in the WHERE clause of an SQL query with a comparison operator "=".
What happens when the main query is executed?
- A. The main query fails because the multiple-row subquery cannot be used with the comparison operator.
- B. The main query executes with all the values returned by the subquery.
- C. The main query executes with the last value returned by the subquery.
- D. The main query executes with the first value returned by the subquery.
- E. You cannot define a multiple-row subquery in the WHERE clause of a SQL query.
Correct Answer: A 🗳️
Explanation: Only visible for TestPassKing members. You can sign-up / login (it's free).
The DBA issues this SQL command:
CREATE USER scott IDENTIFIED by tiger;
What privileges does the user Scott have at this point?
- A. no privileges
- B. only the SELECT privilege
- C. all the privileges of a default user
- D. only the CONNECT privilege
Correct Answer: A 🗳️
Explanation: Only visible for TestPassKing members. You can sign-up / login (it's free).
Which three statements about subqueries are true? (Choose three)
- A. A multiple row subquery can be compared by using the ">" operator.
- B. A multiple row subquery can use the "=" operator.
- C. A single row subquery can retrieve only one column and one row.
- D. A single row subquery can retrieve only one row but many columns.
- E. A multiple row subquery can retrieve multiple rows and multiple columns.
- F. A single row subquery can use the IN operator.
Correct Answer: D,E,F 🗳️
Explanation: Only visible for TestPassKing members. You can sign-up / login (it's free).
Which two are character manipulation functions? (Choose two.)
- A. TRUNC
- B. MOD
- C. REPLACE
- D. TRIM
- E. CASE
- F. TO_DATE
Correct Answer: C,D 🗳️
Explanation: Only visible for TestPassKing members. You can sign-up / login (it's free).
You want to display the titles of books that meet these criteria:
1.Purchased before January 21, 2001
2.Price is less then $500 or greater than $900
You want to sort the results by their data of purchase, starting with the most recently
bought book.
Which statement should you use?
- A. SELECT book_title
FROM books
WHERE (price < 500 OR price > 900)
AND purchase_date < '21-JAN-2001'
ORDER BY purchase date DESC; - B. SELECT book_title
FROM books
WHERE price < 500 or > 900
AND purchase_date < '21-JAN-2001'
ORDER BY purchase date DESC; - C. SELECT book_title
FROM books
WHERE price IN (500,900)
AND purchase_date < '21-JAN-2001'
ORDER BY purchase date ASC; - D. SELECT book_title
FROM books
WHERE price between 500 and 900
AND purchase_date < '21-JAN-2001'
ORDER BY purchase_date;
Correct Answer: A 🗳️
Explanation: Only visible for TestPassKing members. You can sign-up / login (it's free).
