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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Managing Tables with DML | 5% | - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements - Transaction management and control |
| Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Matching SELECT statements - Using ORDER BY with set operations |
| Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Data Dictionary and Time Zones | 5% | - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types |
| Using Functions | 25% | - Character functions for string manipulation - Date arithmetic and date functions - ROUND, TRUNC, MOD functions - Restricting group results - Nested functions - NVL, NULLIF, COALESCE functions - Data type conversion: implicit and explicit - Group functions and grouping data - TO_CHAR, TO_NUMBER, TO_DATE conversion functions |
| Retrieving and Sorting Data | 15% | - Operators, literals, DISTINCT keyword - Arithmetic expressions and NULL values - Limiting rows and substitution variables - Sorting query results - Operator precedence rules - Using SELECT statement and column aliases - DEFINE and VERIFY commands |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage indexes - Create and manage sequences - Create and manage synonyms |
| DDL for Tables and Relationships | 15% | - Table structure, columns, data types - Temporary and external tables - Views management - Constraints management - Drop columns, set unused columns - TRUNCATE TABLE statement - CREATE TABLE statement |
| Relational Database Concepts | 5% | - Relationship between database and SQL - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components |
| Controlling User Access | 5% | - System vs object privileges - Granting privileges on tables - Roles creation and privilege assignment |
Oracle Database 23ai SQL Associate Sample Questions:
1. Which type of INSERT statement allows inserting rows into multiple tables using a single SELECT query?
A) Insert rows into multiple tables simultaneously
B) Insert rows into a table only when a condition is met
C) Insert rows into multiple tables without conditions
D) Insert rows into a single table based on values in other tables
2. Which SQL function can be used to replace NULL values with a specified value?
A) NVL
B) ISNULL
C) REPLACE
D) COALESCE
3. What is the primary purpose of an index in SQL?
A) To improve the performance of data retrieval queries
B) To ensure uniqueness of values in a column
C) To enforce data integrity constraints
D) To store metadata about a table
4. What is the purpose of the MERGE statement in SQL?
A) To update existing rows or insert new rows in a target table
B) To delete duplicate rows from a table
C) To combine the results of two queries
D) To join two tables into one
5. The column data type is converted to a primary key.
A) CREATE SEQUENCE
B) CREATE ALIAS
C) CREATE SYNONYM
D) CREATE INDEX
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A | Question # 3 Answer: A | Question # 4 Answer: A | Question # 5 Answer: C |
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