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| Section | Weight | Objectives |
|---|---|---|
| Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Retrieving and Sorting Data | 15% | - Operator precedence rules - Sorting query results - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases - DEFINE and VERIFY commands - Arithmetic expressions and NULL values - Limiting rows and substitution variables |
| Managing Tables with DML | 5% | - Transaction management and control - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements |
| Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components - Relationship between database and SQL |
| DDL for Tables and Relationships | 15% | - TRUNCATE TABLE statement - Views management - Temporary and external tables - CREATE TABLE statement - Constraints management - Drop columns, set unused columns - Table structure, columns, data types |
| Using SET Operators | 5% | - Using ORDER BY with set operations - Matching SELECT statements - 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% | - Character functions for string manipulation - Data type conversion: implicit and explicit - NVL, NULLIF, COALESCE functions - Date arithmetic and date functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Group functions and grouping data - Restricting group results - ROUND, TRUNC, MOD functions - Nested functions |
| Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Data Dictionary and Time Zones | 5% | - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage indexes - Create and manage synonyms |
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Free Oracle 1Z0-171 Dumps to prepare for the Oracle Database 23ai SQL Associate 1Z0-171 exam is a great way to gauge your progress in preparation. You can also check your progress with the help of evaluation reports. These reports will help you know where you stand in your preparation and boost your confidence.
NEW QUESTION # 58
Which of the following data dictionary views provides information about constraints on tables?
Answer: A
NEW QUESTION # 59
Which SQL clause can be used in Oracle to limit the number of rows returned?
Answer: A
NEW QUESTION # 60
What does the INTERSECT operator do in SQL?
Answer: A
NEW QUESTION # 61
Which clause is used to ensure that only specific rows are deleted in a DELETE statement?
Answer: D
NEW QUESTION # 62
What will the following query return?
SELECT TO_CHAR(SYSDATE, 'DD-MM-YYYY') AS formatted_date FROM dual;
Answer: C
NEW QUESTION # 63
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