PARFILE				Specify parameter file name.

DIRECTORY			Directory object to be used for dump and log files.
				Directory name must be created: ex. CREATE DIRECTORY mydir AS '/home/myname/mydir';

DUMPFILE			Specify list of destination dump file names [expdat.dmp]

FULL				Export entire database [NO].

SCHEMAS				List of schemas to export [login schema]

TABLES				Identifies a list of tables to export.
				For example, TABLES=HR.EMPLOYEES,SH.SALES:SALES_1995

TABLESPACES			Identifies a list of tablespaces to export.

LOGFILE				Specify log file name [export.log].

CONTENT				Specifies data to unload.
					Valid keyword values are: [ALL], DATA_ONLY and METADATA_ONLY.

INCLUDE				Include specific object types.For example, INCLUDE=TABLE_DATA.
				ex. INCLUDE=TABLE:"IN ('EMPLOYEES', 'DEPARTMENTS')"
				ex  INCLUDE=TABLE,INDEX:"LIKE 'EMP%'"
				For Materialized views two includes are needed Include=Table and Include=View

QUERY				Predicate clause used to export a subset of a table.
				ex. QUERY=employees:"WHERE department_id > 10".

EXCLUDE				Exclude specific object types.
				ex. EXCLUDE=SCHEMA:"='HR'"

FILESIZE			Specify the size of each dump file in units of bytes.

FLASHBACK_TIME			Used to provide a consistent=y in expdp: ex. flashback_time=systimestamp
				ex. flashback_time="to_timestamp('15-04-2016 12:31:00','DD-MM-YYYY HH24:MI:SS')"

FLASHBACK_SCN			SCN used to reset session snapshot. To get SCN: SELECT TIMESTAMP_TO_SCN(SYSTIMESTAMP) FROM dual;


NOLOGFILE			Do not write log file [NO]

TRANSPORT_TABLESPACES		List of tablespaces from which metadata will be unloaded.

VIEWS_AS_TABLES			Identifies one or more views to be exported as tables.
				For example, VIEWS_AS_TABLES=HR.EMP_DETAILS_VIEW.

ESTIMATE			Calculate job estimates.Valid keyword values are: [BLOCKS] and STATISTICS
					May not be accurate if COMPRESSION (use ESTIMATE=STATISTICS instead), QUERY, or REMAP_DATA is used.

ESTIMATE_ONLY			Calculate job estimates without performing the export [NO].
				Cannot be used with QUERY parameter

SAMPLE				Percentage of data to be exported.

PARALLEL			Change the number of active workers for current job.

ENCRYPTION			Encrypt part or all of a dump file.
					Valid keyword values are: ALL, DATA_ONLY, ENCRYPTED_COLUMNS_ONLY, METADATA_ONLY and NONE.

ENCRYPTION_ALGORITHM		Specify how encryption should be done.
						Valid keyword values are: [AES128], AES192 and AES256.

ENCRYPTION_MODE			Method of generating encryption key.
					Valid keyword values are: DUAL, PASSWORD and [TRANSPARENT].

ENCRYPTION_PASSWORD		Password key for creating encrypted data within a dump file.


ENCRYPTION_PWD_PROMPT		Specifies whether to prompt for the encryption password [NO].
				Terminal echo will be suppressed while standard input is read.

EXCLUDE				Exclude specific object types.
					ex. FULL=Y EXCLUDE=SCHEMA:"='HR'".

NETWORK_LINK			Name of remote database link to the source system.

ATTACH				Attach to an existing job.
					For example, ATTACH=job_name.

CLUSTER				Utilize cluster resources and distribute workers across the Oracle RAC [YES].


REMAP_DATA			Specify a data conversion function.
				For example, REMAP_DATA=EMP.EMPNO:REMAPPKG.EMPNO

REUSE_DUMPFILES			Overwrite destination dump file if it exists [NO].

SERVICE_NAME			Name of an active Service and associated resource group to constrain Oracle RAC resources.

VERSION				Version of objects to export.
				Valid keyword values are: [COMPATIBLE], LATEST or any valid database version.

METRICS				Report additional job information to the export log file [NO].

LOGTIME				Specifies that messages displayed during export operations be timestamped.
				Valid keyword values are: ALL, [NONE], LOGFILE and STATUS

KEEP_MASTER			Retain the master table after an export job that completes successfully [NO].

ABORT_STEP			Stop the job after it is initialized or at the indicated object.
					Valid values are -1 or N where N is zero or greater.
					N corresponds to the object's process order number in the master table

ACCESS_METHOD			Instructs Export to use a particular method to unload data.
				Valid keyword values are: [AUTOMATIC], DIRECT_PATH and EXTERNAL_TABLE.

DATA_OPTIONS			Data layer option flags.
				Valid keyword values are: XML_CLOBS.

HELP				Display Help messages [NO].

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command line example
		expdp system/passwd DIRECTORY=my_directory DUMPFILE=mydatadump.dmp SCHEMAS=hr
		     TABLES=employees,departments LOGFILE=mydatadump_exp.log
parameter file examples
	  SCHEMAS=HR
	  DUMPFILE=mydatadump.dmp
	  DIRECTORY=my_directory
	  LOGFILE=mydatadump_exp.log
          INCLUDE=TABLE:"IN ('EMPLOYEES', 'DEPARTMENTS')"  or TABLES=(EMPLOYEES, DEPARTMENTS)
	  CONTENT=DATA_ONLY
	  EXCLUDE=TABLE:"IN ('COUNTRIES', 'REGIONS')"
	  QUERY=employees:"WHERE department_id !=50 ORDER BY employee_id"
	  FLASHBACK_TIME="TO_TIMESTAMP('27-10-2015 13:16:00', 'DD-MM-YYYY HH24:MI:SS')"
	  FLASHBACK_TIME=SYSTIMESTAMP
	  FLASHBACK_TIME="TO_TIMESTAMP(TO_CHAR(TRUNC(SYSDATE)+20/24,'YYYY-MM-DD'),'YYYY-MM-DD')"
	  INCLUDE=PROCEDURE
	  INCLUDE=INDEX:"LIKE 'EMP%'"
	  INCLUDE=TABLE:"IN ('matview_east_sales','matview_west_sales')"  --  materialized views need to be included as both TABLE and VIEW
	  INCLUDE=VIEW:"IN ('matview_east_sales','matview_west_sales')"

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INTERACTIVE MODE

Note: abbreviations are allowed.

ADD_FILE			Add dumpfile to dumpfile set.


CONTINUE_CLIENT			Return to logging mode. Job will be restarted if idle.


EXIT_CLIENT			Quit client session and leave job running.


FILESIZE			Default filesize (bytes) for subsequent ADD_FILE commands.


HELP				Summarize interactive commands.

KILL_JOB			Detach and delete job

PARALLEL			Change the number of active workers for current job.

REUSE_DUMPFILES			Overwrite destination dump file if it exists [NO].

START_JOB			Start or resume current job.
				Valid keyword values are: SKIP_CURRENT.

STATUS				Frequency (secs) job status is to be monitored where
				the default [0] will show new status when available

STOP_JOB			Orderly shutdown of job execution and exits the client.
				Valid keyword values are: IMMEDIATE. ex. Export> STOP_JOB=IMMEDIATE