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| Section | Weight | Objectives |
|---|---|---|
| Managing Tables with DML | 5% | - INSERT, UPDATE, DELETE operations - Transaction management and control - Multi-table INSERT and MERGE statements |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage indexes - Create and manage synonyms |
| Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types - Using data dictionary views |
| Using SET Operators | 5% | - Matching SELECT statements - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators |
| Controlling User Access | 5% | - Roles creation and privilege assignment - System vs object privileges - Granting privileges on tables |
| Using Functions | 25% | - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Restricting group results - Date arithmetic and date functions - ROUND, TRUNC, MOD functions - Data type conversion: implicit and explicit - Group functions and grouping data - Character functions for string manipulation - Nested functions - NVL, NULLIF, COALESCE functions |
| Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - Relationship between database and SQL - SQL SELECT clauses and ERD components |
| Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Retrieving and Sorting Data | 15% | - Operator precedence rules - DEFINE and VERIFY commands - Arithmetic expressions and NULL values - Limiting rows and substitution variables - Sorting query results - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases |
| DDL for Tables and Relationships | 15% | - CREATE TABLE statement - Table structure, columns, data types - Drop columns, set unused columns - Constraints management - TRUNCATE TABLE statement - Temporary and external tables - Views management |
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NEW QUESTION # 107
Which SQL keyword is used to define a substitution variable in a SQL statement?
Answer: A
NEW QUESTION # 108
What happens when a temporary table is created in Oracle Database?
Answer: C
NEW QUESTION # 109
What will the following query result in?
SELECT e.employee_id, e.manager_id
FROM employees e
WHERE e.manager_id IS NOT NULL;
Answer: C
NEW QUESTION # 110
Which of the following is an example of an object privilege?
Answer: A
NEW QUESTION # 111
What type of join does the following query perform?
SELECT *
FROM employees e, departments d
WHERE e.department_id = d.department_id;
Answer: B
NEW QUESTION # 112
......
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