Introduction to Oracle9i: SQL: 1Z0-007 Exam
"Introduction to Oracle9i: SQL", also known as 1Z0-007 exam, is a Oracle Certification. With the complete collection of questions and answers, Pass4sureCert has assembled to take you through 110 Q&As to your 1Z0-007 Exam preparation. In the 1Z0-007 exam resources, you will cover every field and category in 9i DBA Certification helping to ready you for your successful Oracle Certification.
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Oracle 1Z0-007 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Aggregating Data Using Group Functions | 13% | - Filtering groups with HAVING - Using COUNT, SUM, AVG, MAX, MIN - GROUP BY clause |
| Displaying Data from Multiple Tables | 15% | - Equijoins and non-equijoins - Outer joins and self-joins - ANSI/ISO SQL99 joins |
| Creating and Managing Tables | 9% | - Data types and constraints - CREATE, ALTER, DROP, RENAME tables - Managing indexes, sequences, synonyms, views |
| Restricting and Sorting Data | 12% | - Using substitution variables - Limiting rows with WHERE clause - Sorting results with ORDER BY |
| Single-Row Functions | 18% | - Character, number, and date functions - Conversion functions (TO_CHAR, TO_NUMBER, TO_DATE) - Conditional expressions (NVL, DECODE) |
| Subqueries | 10% | - Using IN, ANY, ALL operators - Single-row and multi-row subqueries |
| Manipulating Data | 8% | - Transaction control (COMMIT, ROLLBACK, SAVEPOINT) - INSERT, UPDATE, DELETE statements |
| Writing Basic SQL SELECT Statements | 15% | - Capabilities of SQL SELECT statements - SQL vs iSQL*Plus commands - Executing basic SELECT statements |
Oracle Introduction to Oracle9i: SQL Sample Questions:
Which clause should you use to exclude group results?
- A. ORDER BY
- B. HAVING
- C. GROUP BY
- D. WHERE
- E. RESTRICT
Correct Answer: B 🗳️
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Which is an iSQL*Plus command?
- A. INSERT
- B. DESCRIBE
- C. UPDATE
- D. RENAME
- E. SELECT
- F. DELETE
Correct Answer: B 🗳️
Explanation: Only visible for Pass4sureCert members. You can sign-up / login (it's free).
Examine the structure of the EMPLOYEES table:
You issue these statements:
CREATE table new_emp ( employee_id NUMBER, name VARCHAR2(30));
INSERT INTO new_emp SELECT employee_id , last_name from employees;
Savepoint s1;
UPDATE new_emp set name = UPPER(name);
Savepoint s2;
Delete from new_emp;
Rollback to s2;
Delete from new_emp where employee_id =180;
UPDATE new_emp set name = 'James';
Rollback to s2;
UPDATE new_emp set name = 'James' WHERE employee_id =180;
Rollback;
At the end of this transaction, what is true?
- A. You cannot roll back to the same savepoint more than once.
- B. You have an employee with the name of James.
- C. Your last update fails to update any rows because employee ID 180 was already deleted.
- D. You have no rows in the table.
Correct Answer: D 🗳️
Explanation: Only visible for Pass4sureCert members. You can sign-up / login (it's free).
Which three statements about subqueries are true? (Choose three)
- A. A single row subquery can retrieve only one column and one row.
- B. A multiple row subquery can use the "=" operator.
- C. A single row subquery can use the IN operator.
- 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 multiple row subquery can be compared by using the ">" operator.
Correct Answer: C,D,E 🗳️
Explanation: Only visible for Pass4sureCert members. You can sign-up / login (it's free).
You are granted the CREATE VIEW privilege. What does this allow you to do?
- A. Create a view only of it is based on tables that you created.
- B. Create a view that is accessible by everyone.
- C. Create a sequence view in any schema.
- D. Create a view in your schema.
- E. Create a view in any schema.
- F. Create a table view.
Correct Answer: D 🗳️
Explanation: Only visible for Pass4sureCert members. You can sign-up / login (it's free).
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