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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Using SET Operators | - Ordering results with set operations - UNION, UNION ALL, INTERSECT, MINUS operators | |
| Topic 2: Working with Time Zones and Date/Time Data | - TIMESTAMP, INTERVAL data types - Time zone conversion functions | |
| Topic 3: Conversion Functions and Conditional Expressions | 10% | - TO_CHAR, TO_NUMBER, TO_DATE functions - Implicit and explicit data type conversion - NVL, NULLIF, COALESCE and CASE expressions |
| Topic 4: Manipulating Data and Managing Transactions | - Multi-table inserts - Transaction control: COMMIT, ROLLBACK, SAVEPOINT - INSERT, UPDATE, DELETE, MERGE statements | |
| Topic 5: Using Subqueries to Solve Queries | - Single-row and multi-row subqueries - Correlated subqueries for update/delete | |
| Topic 6: Restricting and Sorting Data | 15% | - Operator precedence - ORDER BY clause and sorting rules - WHERE clause and filtering conditions - Substitution variables, DEFINE and VERIFY commands |
| Topic 7: Relational Database Concepts | 10% | - ERD and SQL statement mapping - Relationship between database and SQL - Theoretical and physical aspects of relational databases |
| Topic 8: Managing Tables and Constraints | - Data types, creating/altering/dropping tables - Constraints: primary key, foreign key, unique, check, not null - Temporary and external tables | |
| Topic 9: Managing Indexes, Synonyms and Sequences | - Create and use sequences - Create and maintain indexes - Create and use synonyms | |
| Topic 10: Using Single-Row Functions to Customize Output | 20% | - Character, number, and date functions - Nested functions usage |
| Topic 11: Managing Views | - Updatable and read-only views - Create, modify and drop views | |
| Topic 12: Aggregating Data Using Group Functions | 10% | - GROUP BY and HAVING clauses - Handling NULLs in group functions - SUM, AVG, COUNT, MAX, MIN functions |
| Topic 13: Retrieving Data Using SQL SELECT Statement | 20% | - Arithmetic operations and NULL handling - SELECT statement syntax and usage - Column aliases, concatenation, literals and DISTINCT |
| Topic 14: Controlling User Access | - Roles, granting and revoking privileges - System and object privileges | |
| Topic 15: Displaying Data from Multiple Tables | 15% | - Self-joins and outer joins - Cartesian products - Equijoins and non-equijoins |
| Topic 16: Using Data Dictionary Views | - Retrieve metadata and object information |
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NEW QUESTION # 342
Evaluate the following two queries:
Which statement is true regarding the above two queries?
Answer: B
NEW QUESTION # 343
Which two statements are true about Data Manipulation Language (DML) statements?
Answer: C,E
NEW QUESTION # 344
Examine the structure of the EMPLOYEES table. (Choose the best answer.) You must display the details of employees who have manager with MANAGER_ID 100, who were hired in the past 6 months and who have salaries greater than 10000.
Answer: A
NEW QUESTION # 345
Which three are true about multiple INSERT statements?
Answer: B,C,D
NEW QUESTION # 346
Which two are true about granting privileges on objects?
Answer: A,E
NEW QUESTION # 347
......
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