Running SQL*Loader
SQL*Loader can be invoked from the command line in two different ways. Simply typing the following:
sqlldr
causes SQL*Loader to display a list of valid command-line parameters. You can also invoke the program as follows:
sqlldrkeyword=value[keyword=value...]
For example:
sqlldr system/manager CONTROL=product.ctl LOG=product.log
You can specify values without associated keywords, if you wish, but if you do, the order of the values must match the order in which the parameters are listed in the help file (or in the Oracle documentation). You must include values for all parameters up to the last one you will specify in this manner. You may also mix techniques; you could, for example, simply provide the username value without the USERID keyword (because this is the first-position parameter) and then use keyword/value pairs for the rest.
You can also specify all of the command-line parameters as part of a parameter file; you specify the name of this file in the PARFILE parameter on the sqlldr command line.