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| Section | Weight | Objectives |
|---|---|---|
| Using Functions | 25% | - Date arithmetic and date functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - NVL, NULLIF, COALESCE functions - Nested functions - Group functions and grouping data - Restricting group results - Data type conversion: implicit and explicit - Character functions for string manipulation - ROUND, TRUNC, MOD functions |
| DDL for Tables and Relationships | 15% | - Table structure, columns, data types - CREATE TABLE statement - Views management - TRUNCATE TABLE statement - Temporary and external tables - Drop columns, set unused columns - Constraints management |
| Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Relational Database Concepts | 5% | - SQL SELECT clauses and ERD components - Relationship between database and SQL - Relational database theoretical and physical aspects |
| Managing Tables with DML | 5% | - Transaction management and control - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements |
| Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views - INTERVAL data types |
| Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Retrieving and Sorting Data | 15% | - Using SELECT statement and column aliases - Sorting query results - Operators, literals, DISTINCT keyword - Limiting rows and substitution variables - Operator precedence rules - Arithmetic expressions and NULL values - DEFINE and VERIFY commands |
| Using SET Operators | 5% | - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators - Matching SELECT statements |
| Controlling User Access | 5% | - Roles creation and privilege assignment - System vs object privileges - Granting privileges on tables |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
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NEW QUESTION # 12
Which SQLPlus command displays defined substitution variable values?
Answer: D
NEW QUESTION # 13
What does the EXISTS operator check in a subquery?
Answer: A
NEW QUESTION # 14
Which command would drop an index from a table?
Answer: A
NEW QUESTION # 15
What is the primary purpose of granting privileges in Oracle Database?
Answer: D
NEW QUESTION # 16
Which type of join includes rows that do not have matching values in the joined table?
Answer: B
NEW QUESTION # 17
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