Unload Oracle Data To Flat File

parameters:

delimiter: delimiter char ("|",",","#","TAB","WHITESPACE")

quote: quote char (quote="'" => single quotes, quote="chr(34)" => double quotes)

quotestringonly: set "y" to put quotes around string columns only and not ones with values or numbers

recorddelimiter: record delimiter, default is CRLF

header: y|n, print field name at first line

exportclob: y|n, export clob data to file

table: table name ("all" for unload all table)

query: sql query string (can not use multi-line sql)

sqlfile: sql script file contains the query you want to unload

schema: schema name, use this prameter to unload specific schema's data, if not set, use logon user's default schema

datafile: data file name

folder: data files folder (for unload all table)

dateformat: date format (e.g. "YYYY-MM-DD HH24:MI:SS")

timestampformat: timestamp format (e.g. ''YYYY-MM-DD-HH24.MI.SS.FF6'')

buffer: Number of rows that will be transferred across the network at the same time. 
  This property can have a great impact on performance. 
  So it is preferable to choose the optimal value of buffer for each SQL statement and software - hardware configuration experimentally. 
  The default value is 25.

unicode: set "unicode=y" to make unloaded file unicode encode. 

quit = y|n (quit OraCmd after run batch file)

example:
OraCmd> unload table=jobs datafile=e:\temp\tables\jobs.txt delimiter="," header=y;



datafile: jobs.txt


OraCmd> unload query="select job_id,job_title from jobs"
     2  datafile=e:\temp\tables\jobs_part.txt
     3  delimiter=","
     4  header=y;



datafile: jobs_part.txt


sqlfile content: unload_jobs.sql

	select job_id,job_title from jobs

OraCmd> unload sqlfile=e:\temp\tables\unload_jobs.sql
     2  datafile=e:\temp\tables\jobs_part2.txt
     3  delimiter="," quote="chr(34)"
     4  header=y;



datafile content: jobs_part2.txt

"JOB_ID","JOB_TITLE"
"AD_PRES","President"
"AD_VP","Administration Vice President"
"AD_ASST","Administration Assistant"
"FI_MGR","Finance Manager"
"FI_ACCOUNT","Accountant"
"AC_MGR","Accounting Manager"
"AC_ACCOUNT","Public Accountant"
"SA_MAN","Sales Manager"
"SA_REP","Sales Representative"
"PU_MAN","Purchasing Manager"
"PU_CLERK","Purchasing Clerk"
"ST_MAN","Stock Manager"
"ST_CLERK","Stock Clerk"
"SH_CLERK","Shipping Clerk"
"IT_PROG","Programmer"
"MK_MAN","Marketing Manager"
"MK_REP","Marketing Representative"
"HR_REP","Human Resources Representative"
"PR_REP","Public Relations Representative"




OraCmd> unload table=all folder=e:\temp\tables delimiter="," header=y;
Unload Oracle data to flat file
