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SQL*Loader is a ubiquitous tool in the Oracle world. It has been shipped with Oracle since at least Version 6 and continues to be supported and enhanced with each new version of Oracle, including Oracle8 and Oracle8i. The job of SQL*Loader is to load data from flat files into an Oracle database. It`s optimized for loading large volumes of data, and is flexible enough to handle virtually any input format. Almost every Oracle user has to use SQL*Loader at one time or another, and DBAs are frequently called upon to load data for the users in their organization. Despite SQL*Loader`s wide availability and usage, few DBAs and developers know how to get the most out of it. Oracle SQL*Loader: The Definitive Guide has everything you need to know to put SQL*Loader to its best use: an introduction to SQL*Loader, a reference to all of its syntax options, and most importantly, stepbystep instructions for all the SQL*Loader tasks you`d want to performand maybe some you didn`t realize you COULD perform. You`ll learn how to construct the necessary control files and load from different types of files containing different types of data (e.g., fixedwidth data, delimited data, and data of various datatypes). You`ll also learn how to validate data, load it selectively, transform it as it is loaded, and recover after failure. This book explains how to optimize SQL*Loader performance by adjusting the transaction size and using the new direct path option. It also covers the newest SQL*Loader featuresthe loading of large object (LOB) columns and the new object types (nested tables, varying arrays, and object tables). Oracle SQL*Loader: The Definitive Guide is an indispensable resource for anyone who is new to SQL*Loader; a taskoriented learning tool for those who are already using it; and a quick reference for every user. If you want to take best advantage of an essential Oracle tool, you need this book.About the AuthorSanjay Mishra is a certified Oracle database administrator with more than ten years of IT experience. He has been involved in the design, architecture, and implementation of many missioncritical and decision support databases. He has worked extensively in the areas of database architecture, database management, backup / recovery, performance tuning, Oracle Parallel Server, and parallel execution. He has a Bachelor of Science degree in Electrical Engineering, and a Master of Engineering degree in Systems Science and Automation. He is the coauthor of Oracle Parallel Processing and Oracle SQL Loader: The Definitive Guide (both published by OReilly & Associates). Presently, he works as a database architect at Dallas Based i2 Technologies, and can be reached at sanjay_mishra@i2.com.
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