【2025年最新版】1Z0-071-JPN Oracle Database SQL 模擬問題集

Master Oracle Database SQL: Your Path to Certification Success

This comprehensive practice test is designed to help you confidently achieve the passing score for the Oracle Database SQL certification exam. Aim for a score of 63 points or higher to demonstrate proficiency in relational database concepts and SQL query writing.

Key Topics Covered in the Oracle Database SQL Exam:

• Relational Database Fundamentals: Understand the core concepts of relational databases, including their theoretical and physical aspects. Learn how ER diagrams relate to SQL.
• SQL Query Construction:
  • Data Retrieval: Master the SELECT statement, including using column aliases, distinct keywords, and arithmetic expressions with NULL value handling.
  • Data Manipulation: Learn to limit and sort query results, and utilize substitution variables.
  • Advanced SQL: Explore DEFINE and VERIFY commands for query customization.
  • String & Numeric Operations: Utilize single-row functions for output customization, and apply functions for string manipulation, numeric calculations (ROUND, TRUNC, MOD), and date/time transformations.
  • Data Type Conversion: Understand implicit and explicit data type conversions using TO_CHAR, TO_NUMBER, and TO_DATE.
  • Conditional Logic: Apply functions like NVL, NULLIF, and COALESCE to handle NULL values.
• Aggregate Functions & Grouping: Report aggregated data using group functions. Limit results within data groups and create data groups for targeted analysis.
• Self-Joins & Complex Joins: Retrieve data from multiple tables using self-joins and various join types, including:
  • Equijoins
  • Non-Equijoins
  • Outer Joins (including FULL OUTER JOIN)
  • Cartesian Products
• Subqueries: Solve complex queries using single-row, multi-row, and correlated subqueries. Learn how to use subqueries for row updates and deletions.
• Set Operators: Utilize set operators like INTERSECT, MINUS, UNION, and UNION ALL to combine and manipulate query results.
• Data Manipulation Language (DML): Manage database tables with DML statements, including INSERT, UPDATE, and DELETE operations. Understand how to execute bulk inserts using the MERGE statement.
• Data Definition Language (DDL): Manage database schema using DDL commands:
  • Indexes, Synonyms, and Sequences: Learn to create, manage, and understand the purpose of these database objects.
  • Tables: Create, drop, truncate, and manage table structures, including column definitions and data types.
• Constraints: Implement and manage constraints to ensure data integrity.
• Views: Create and manage database views for simplified data access.
• User & System Privileges: Control user access with system and object privileges. Understand the difference between privilege granting and role assignment.
• Data Dictionary Views: Utilize data dictionary views to manage and query database objects.
• Time Zone Handling: Work with date and time data across different time zones using CURRENT_DATE, CURRENT_TIMESTAMP, and LOCALTIMESTAMP. Understand the INTERVAL data type.

Oracle Database SQL Exam Details:

• Number of Questions: 78
• Format: Multiple Choice
• Testing Method: Computer Based Testing (CBT)
• Exam Duration: 120 minutes
• Passing Score: 63% or higher

Prepare effectively for your Oracle Database SQL certification with this comprehensive resource. Gain the skills and knowledge needed to excel in your database career.