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| Section | Weight | Objectives |
|---|---|---|
| Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations - Matching SELECT statements |
| Controlling User Access | 5% | - System vs object privileges - Roles creation and privilege assignment - Granting privileges on tables |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
| Managing Tables with DML | 5% | - INSERT, UPDATE, DELETE operations - Transaction management and control - Multi-table INSERT and MERGE statements |
| Data Dictionary and Time Zones | 5% | - INTERVAL data types - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Relational Database Concepts | 5% | - SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects - Relationship between database and SQL |
| DDL for Tables and Relationships | 15% | - Views management - Temporary and external tables - Drop columns, set unused columns - TRUNCATE TABLE statement - Table structure, columns, data types - CREATE TABLE statement - Constraints management |
| Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Retrieving and Sorting Data | 15% | - Limiting rows and substitution variables - Sorting query results - Operator precedence rules - DEFINE and VERIFY commands - Using SELECT statement and column aliases - Operators, literals, DISTINCT keyword - Arithmetic expressions and NULL values |
| Using Functions | 25% | - Date arithmetic and date functions - Nested functions - Data type conversion: implicit and explicit - Restricting group results - Character functions for string manipulation - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - NVL, NULLIF, COALESCE functions - ROUND, TRUNC, MOD functions - Group functions and grouping data |
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NEW QUESTION # 82
What happens when the TRUNCATE TABLE statement is executed?
Answer: C
NEW QUESTION # 83
Which command can be used to rename a table in Oracle Database?
Answer: B
NEW QUESTION # 84
What happens when a temporary table is created in Oracle Database?
Answer: B
NEW QUESTION # 85
Which SQLPlus command displays defined substitution variable values?
Answer: A
NEW QUESTION # 86
What is the purpose of the MERGE statement in SQL?
Answer: C
NEW QUESTION # 87
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