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Oracle 1Z1-171 Exam Syllabus Topics:

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