Overview of HPL features
The High-Performance Loader (HPL) is a
database server tool that you can use to load and unload large quantities
of data efficiently to or from a database.
The HPL data-load process
The data-load process reads a source data file, converts
the data to a different format, and inserts the converted data into
a database table.
HPL loading modes
The High-Performance Loader (HPL) offers
two load modes, deluxe mode and express mode. The express mode is
faster, and the deluxe mode is more flexible.
HPL components
The HPL consists of the onpload utility,
the ipload utility, the onpladm command-line
utility, and the onpload database.
Environment variables needed for the HPL
The High-Performance Loader (HPL) is part
of the database server, so you must start the database server before
you use the HPL. Before you start the database server and use HPL,
you must set environment variables.
Architecture of the onpload utility
The ipload utility is the interface
that allows you to prepare the parameters that the onpload utility
uses. The onpload utility, which is a client application
that attaches to the database server, actually loads and unloads the
data.