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Part 3: Beyond the Basics > Using SQL*Loader to Load Data

Chapter 21. Using SQL*Loader to Load Data

In the scripts provided for the practice tables, a large number insert commands are executed. In place of those inserts, you could create a file containing the data to be loaded and then use Oracle's SQL*Loader utility to load the data. This chapter provides you with an overview of the use of SQL*Loader and its major capabilities. Two additional data-movement utilities, Data Pump Export and Data Pump Import, are covered in Chapter 22. SQL*Loader, Data Pump Export, and Data Pump Import are described in great detail in the Oracle Database Utilities provided with the standard Oracle documentation set.

SQL*Loader loads data from external files into tables in the Oracle database. SQL*Loader uses two primary files: the datafile, which contains the information to be loaded, and the control file, which contains information on the format of the data, the records and fields within the file, the order in which they are to be loaded, and even, when needed, the names of the multiple files that will be used for data. You can combine the control file information into the datafile itself, although the two are usually separated to make it easier to reuse the control file.


  

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