Practical Guide For Oracle Sql T Sql And Mysql

SQL is a widely used to access most databases, therefore database developers and system administrators should be familiar with it. This hands-on SQL book will help beginner and intermediate users to write queries that apply complex conditions on a table. The book's unique side by side approach makes it easy for the reader to learn three major query languages in the IT industry. The author has over 20 years of experience in database design. KEY FEATURES: Contains numerous practical screenshots of Oracle SQL, T-SQL, MySQL statements and results. Shows the differences between Oracle SQL, T-SQL and MySQL side by side. Gives a real world experience for SQL developers and database administrators. Sample data is available to work on (available on our website).

Structured Query Language has become the standard for generating, manipulating, and retrieving database information. The dramatic increase in the popularity of relational databases, coupled with Oracle’s having the largest market share, has created a demand for programmers who can write SQL code correctly and efficiently. This book provides a systematic approach to learning SQL in Oracle. Each chapter is written in a step-by-step manner and includes examples that can be run using Oracle. Using the sample tables and data provided, readers will be able to perform the examples to gain hands-on experience with Oracle programming. Gain an understanding of basic SQL principles. Learn to generate, store, and edit SQL queries in Oracle. Develop joins, subqueries, and correlated subqueries. Work with XML and Oracle databases. Test your SQL knowledge with the exercises at the end of each chapter!

It is a major challenge to migrate very large databases from one system, say for example, to transfer critical data from Oracle to SQL Server. One has to consider several issues such as loss of data being transferred, the security of the data, the cost and effort, technical aspects of the software involved, etc. There a very few books that provide practical tools and the methodology to migrate data from one vendor to another. This book introduces the concepts in database migration with large sample databases. It provides step by step guides and screenshots for database migration tools. Many examples are shown for migrating Oracle, SQL Server and MySQL databases.

It is a major challenge to migrate very large databases from one system, say for example, to transfer critical data from Oracle to SQL Server. One has to consider several issues such as loss of data being transferred, the security of the data, the cost and effort, technical aspects of the software involved, etc. There a very few books that provide practical tools and the methodology to migrate data from one vendor to another. This book introduces the concepts in database migration with large sample databases. It provides step by step guides and screenshots for database migration tools. Many examples are shown for migrating Oracle, SQL Server and MySQL databases.

This pocket guide presents the most crucial information about SQL in a compact and easily accessible format, covering the four commonly used SQL variants--Oracle, IBM DB2, Microsoft SQL Server, and MySQL. Topics include: Data manipulation statements (SELECT, DELETE, INSERT, UPDATE, MERGE) and transaction control statements (START TRANSACTION, SAVEPOINT, COMMIT, ROLLBACK). Common SQL functions (date, numeric, math, trigonometric, string, conversion, aggregate) Such topics as literals, NULLs, CASE expressions, datatype conversion, regular expressions, grouping and summarizing data, joining tables, and writing queries (hierarchical, recursive, union, flashback) and subqueries. Instead of presenting complex and confusing syntax diagrams, the book teaches by example, showing the SQL statements and options that readers are most like to use. All example data is available on the O'Reilly web site. "If you need fast, accurate SQL information, with examples for multiple database engines, be sure to check out this book."--Chris Kempster, Senior DBA and author of SQL Server 2000 for the Oracle DBA, www.chriskempster.com

Oracle is one of the most widely used database systems in the world, and MYSQL is the world's most popular open source database system. This book is an example-driven guide for beginners and intermediates to Oracle and MYSQL databases. It provides thorough introduction to Database Design, SQL, PL/SQL, and much more.This book enriched with the following key concepts with code illustrations.RDBMS Concepts and UsagesDatabase Design and ImplicationsDatabase Models and RepresentationsDatabase Keys and ConstrainsNormalization and De-normalizationinstallation and Configuration of Oracle and MYSQLData definition Language SQL CommandsData Access using Data Manipulation Language SQL CommandsTransaction in DatabaseDatabase Object: Table, View, Synonym, SequenceBuilt-in Functions and ProgramsPL/SQL, Triggers, Stored ProceduresBasic Administration, Privilege Management, Backup and Restore Databases

CD-ROM contains: Practice database -- Sample scripts reference in text.