1Z0-071: Oracle Database 12c SQL Certification Exam Guide - Tapa blanda

Sinopsis

This book serves as a comprehensive guide for professionals preparing for the Oracle Database 12c SQL (1Z0-071) certification exam. It covers essential SQL concepts, including retrieving, manipulating, and managing data in an Oracle database. The book is structured systematically, ensuring a deep understanding of both fundamental and advanced SQL topics.

The guide starts with SQL basics, explaining the Oracle Database architecture, SQL syntax, data types, and expressions. It then progresses to retrieving data using SELECT statements, column aliases, concatenation, and filtering data using the WHERE clause, logical operators, and pattern matching with LIKE. Sorting and pagination techniques with ORDER BY, FETCH, and OFFSET are also discussed.

The book delves into single-row functions, including character, number, and date functions, as well as conversion functions like TO_CHAR and TO_DATE. Handling NULL values with NVL and COALESCE ensures data integrity. Aggregate functions (COUNT, SUM, AVG, MIN, MAX), GROUP BY, and HAVING are explained in-depth for summarizing data effectively.

Advanced SQL techniques like joins, subqueries, and set operators (UNION, INTERSECT, MINUS) are covered, allowing users to manipulate complex datasets efficiently. The book also explores data manipulation (DML) and data definition (DDL) commands, covering INSERT, UPDATE, DELETE, CREATE, ALTER, and transaction control with COMMIT, ROLLBACK, and SAVEPOINT.

Further, it explains constraints (PRIMARY KEY, FOREIGN KEY, CHECK, NOT NULL, UNIQUE), indexing strategies, views, sequences, synonyms, and user privileges. The final section focuses on performance optimization, execution plans, and troubleshooting to ensure efficient SQL query execution.

With practical examples, exercises, and real-world scenarios, this book equips readers with the knowledge and skills required to pass the 1Z0-071 exam and apply SQL efficiently in enterprise

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