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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Using SET Operators | - UNION, UNION ALL, INTERSECT, MINUS operators - Ordering results with set operations | |
| Topic 2: Managing Tables and Constraints | - Constraints: primary key, foreign key, unique, check, not null - Data types, creating/altering/dropping tables - Temporary and external tables | |
| Topic 3: Relational Database Concepts | 10% | - Theoretical and physical aspects of relational databases - ERD and SQL statement mapping - Relationship between database and SQL |
| Topic 4: Displaying Data from Multiple Tables | 15% | - Cartesian products - Equijoins and non-equijoins - Self-joins and outer joins |
| Topic 5: Using Subqueries to Solve Queries | - Correlated subqueries for update/delete - Single-row and multi-row subqueries | |
| Topic 6: Using Data Dictionary Views | - Retrieve metadata and object information | |
| Topic 7: Working with Time Zones and Date/Time Data | - Time zone conversion functions - TIMESTAMP, INTERVAL data types | |
| Topic 8: Managing Indexes, Synonyms and Sequences | - Create and maintain indexes - Create and use synonyms - Create and use sequences | |
| Topic 9: Manipulating Data and Managing Transactions | - Multi-table inserts - INSERT, UPDATE, DELETE, MERGE statements - Transaction control: COMMIT, ROLLBACK, SAVEPOINT | |
| Topic 10: Retrieving Data Using SQL SELECT Statement | 20% | - Arithmetic operations and NULL handling - SELECT statement syntax and usage - Column aliases, concatenation, literals and DISTINCT |
| Topic 11: Managing Views | - Create, modify and drop views - Updatable and read-only views | |
| Topic 12: Aggregating Data Using Group Functions | 10% | - SUM, AVG, COUNT, MAX, MIN functions - GROUP BY and HAVING clauses - Handling NULLs in group functions |
| Topic 13: Controlling User Access | - Roles, granting and revoking privileges - System and object privileges | |
| Topic 14: Restricting and Sorting Data | 15% | - WHERE clause and filtering conditions - Operator precedence - ORDER BY clause and sorting rules - Substitution variables, DEFINE and VERIFY commands |
| Topic 15: Conversion Functions and Conditional Expressions | 10% | - NVL, NULLIF, COALESCE and CASE expressions - Implicit and explicit data type conversion - TO_CHAR, TO_NUMBER, TO_DATE functions |
| Topic 16: Using Single-Row Functions to Customize Output | 20% | - Character, number, and date functions - Nested functions usage |
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NEW QUESTION # 109
View the Exhibit and examine the structure of the BOOKStable.
The BOOKS table contains details of 100 books.
Examine the commands executed and their outcome:
Which statement is true?
Answer: B
NEW QUESTION # 110
View the exhibit and examine the description of the PRODUCT_INFORMATION table.
Which SQL statement would retrieve from the table the number of products having LIST_PRICE as NULL?
Answer: C
NEW QUESTION # 111
Which three are true about dropping columns from a table?
Answer: A,C,E
NEW QUESTION # 112
Which two statements cause changes to the data dictionary?
Answer: A,C
NEW QUESTION # 113
In the customers table, the CUST_CITY column contains the value 'Paris' for the CUST_FIRST_NAME 'Abigail'.
Evaluate the following query:
What would be the outcome?
Answer: B
NEW QUESTION # 114
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