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Oracle 1Z0-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| DDL for Tables and Relationships | 15% | - Views management - CREATE TABLE statement - TRUNCATE TABLE statement - Drop columns, set unused columns - Temporary and external tables - Constraints management - Table structure, columns, data types |
| Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Controlling User Access | 5% | - Roles creation and privilege assignment - Granting privileges on tables - System vs object privileges |
| Using Functions | 25% | - Restricting group results - Character functions for string manipulation - Group functions and grouping data - ROUND, TRUNC, MOD functions - Data type conversion: implicit and explicit - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Nested functions - NVL, NULLIF, COALESCE functions - Date arithmetic and date functions |
| Managing Tables with DML | 5% | - INSERT, UPDATE, DELETE operations - Transaction management and control - Multi-table INSERT and MERGE statements |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage indexes - Create and manage sequences - Create and manage synonyms |
| Retrieving and Sorting Data | 15% | - Sorting query results - DEFINE and VERIFY commands - Operator precedence rules - Limiting rows and substitution variables - Arithmetic expressions and NULL values - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases |
| Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types - Using data dictionary views |
| Relational Database Concepts | 5% | - Relationship between database and SQL - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components |
| Using SET Operators | 5% | - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators - Matching SELECT statements |
| Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
Oracle Database 23ai SQL Associate Sample Questions:
Question 1
Which function returns the current system date and time in the database session's time zone?
A. SYSDATE
B. CURRENT_TIMESTAMP
C. SYSTEM_TIME
D. LOCAL_TIME
Question 2
Which function is used to convert a string to uppercase in SQL?
A. UPPER
B. TO_UPPERCASE
C. CASE_UPPER
D. CONVERT_UPPER
Question 3
Which command is used to add a new column to an existing table?
A. ALTER COLUMN
B. ADD COLUMN
C. MODIFY COLUMN
D. ALTER TABLE
Question 4
Which function is used to extract the year from a date in SQL?
A. YEAR(date)
B. EXTRACT(YEAR FROM date)
C. TO_YEAR(date)
D. GET_YEAR(date)
Question 5
Which command can be used to rename a table in Oracle Database?
A. ALTER TABLE RENAME
B. MODIFY TABLE NAME
C. RENAME TABLE
D. RENAME
Solutions:
| Question 1 Answer: B | Question 2 Answer: A | Question 3 Answer: D | Question 4 Answer: B | Question 5 Answer: D |
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