Invoking SQL*Loader

Invoking SQL*Loader

When you invoke SQL*Loader, you can specify certain parameters to establish session characteristics. Parameters can be entered in any order, optionally separated by commas. You specify values for parameters, or in some cases, you can accept the default without entering a value.

For example:

SQLLDR CONTROL=sample.ctl, LOG=sample.log, BAD=baz.bad, DATA=etc.dat 
   USERID=scott/tiger, ERRORS=999, LOAD=2000, DISCARD=toss.dsc,
   DISCARDMAX=5

If you invoke SQL*Loader without specifying any parameters, SQL*Loader displays a help screen similar to the following. It lists the available parameters and their default values.

> sqlldr
.
.
.
Usage: SQLLDR keyword=value [,keyword=value,...]

Valid Keywords:

    userid -- ORACLE username/password           
   control -- control file name                  
       log -- log file name                      
       bad -- bad file name                      
      data -- data file name                     
   discard -- discard file name                  
discardmax -- number of discards to allow          (Default all)
      skip -- number of logical records to skip    (Default 0)
      load -- number of logical records to load    (Default all)
    errors -- number of errors to allow            (Default 50)
      rows -- number of rows in conventional path bind array or between direct
path data saves
               (Default: Conventional path 64, Direct path all)
  bindsize -- size of conventional path bind array in bytes  (Default 256000)
    silent -- suppress messages during run (header,feedback,errors,discards,
partitions)
    direct -- use direct path                      (Default FALSE)
   parfile -- parameter file: name of file that contains parameter specifications
  parallel -- do parallel load                     (Default FALSE)
      file -- file to allocate extents from      
skip_unusable_indexes -- disallow/allow unusable indexes or index partitions
(Default FALSE)
skip_index_maintenance -- do not maintain indexes, mark affected indexes as 
unusable  (Default FALSE)
commit_discontinued -- commit loaded rows when load is discontinued  (Default
FALSE)
  readsize -- size of read buffer                  (Default 1048576)
external_table -- use external table for load; NOT_USED, GENERATE_ONLY, EXECUTE 
 (Default NOT_USED)
columnarrayrows -- number of rows for direct path column array  (Default 5000)
streamsize -- size of direct path stream buffer in bytes  (Default 256000)
multithreading -- use multithreading in direct path  
resumable -- enable or disable resumable for current session  (Default FALSE)
resumable_name -- text string to help identify resumable statement
resumable_timeout -- wait time (in seconds) for RESUMABLE  (Default 7200)
date_cache -- size (in entries) of date conversion cache  (Default 1000)

PLEASE NOTE: Command-line parameters may be specified either by position or by keywords.
An example of the former case is 'sqlldr scott/tiger foo'; an example of the latter 
is 'sqlldr control=foo userid=scott/tiger'.One may specify parameters by position before
but not after parameters specified by keywords.For example, 'sqlldr scott/tiger control=foo
logfile=log' is allowed, but 'sqlldr scott/tiger control=foo log' is not, even though the
position of the parameter 'log' is correct.