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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Using Functions | 25% | - Nested functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Character functions for string manipulation - Group functions and grouping data - Date arithmetic and date functions - NVL, NULLIF, COALESCE functions - Data type conversion: implicit and explicit - Restricting group results - ROUND, TRUNC, MOD functions |
| Data Dictionary and Time Zones | 5% | - Using data dictionary views - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components - Relationship between database and SQL |
| Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations - Matching SELECT statements |
| Managing Tables with DML | 5% | - Transaction management and control - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations |
| Controlling User Access | 5% | - Granting privileges on tables - System vs object privileges - Roles creation and privilege assignment |
| Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Retrieving and Sorting Data | 15% | - Using SELECT statement and column aliases - Arithmetic expressions and NULL values - Sorting query results - Limiting rows and substitution variables - Operators, literals, DISTINCT keyword - DEFINE and VERIFY commands - Operator precedence rules |
| DDL for Tables and Relationships | 15% | - Table structure, columns, data types - Temporary and external tables - Views management - CREATE TABLE statement - Drop columns, set unused columns - Constraints management - TRUNCATE TABLE statement |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage synonyms - Create and manage indexes |
Oracle Database 23ai SQL Associate Sample Questions:
1. Which SQL keyword is used to define a substitution variable in a SQL statement?
A) SUBSTITUTION
B) VAR
C) SET
D) DEFINE
2. Which data dictionary view provides information about all tables accessible to the current user?
A) ALL_TABLES
B) USER_TABLES
C) SESSION_TABLES
D) DBA_TABLES
3. Which operator can be used in a multiple-row subquery to match a single value to a list of values?
A) NOT NULL
B) EXISTS
C) IN
D) =
4. What is the default order of evaluation when multiple SET operators are used in a query?
A) UNION, INTERSECT, MINUS
B) INTERSECT, MINUS, UNION
C) UNION, MINUS, INTERSECT
D) INTERSECT, UNION, MINUS
5. What happens if a DELETE statement is executed without a WHERE clause?
A) All rows in the table are deleted.
B) No rows are deleted.
C) An error is raised.
D) Only the first row is deleted.
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: A | Question # 3 Answer: C | Question # 4 Answer: D | Question # 5 Answer: A |
Mark 
Merry 
Eugene 
Thomas 
Howar 
Hedda 
Luther 
Norma 
Jocelyn 
Joyce 
Norma 
Verna 
Lambert 
Broderick 
