Data Pump Import Parameters

# File and Directory Related Parameters

SQLFILE - extracts the DDL from the export dump file.
REUSE_DATAFILES N,Y - Specifies whether it should use existing data files for creating tablespaces during an import
DIRECTORY
LOGFILE
NOLOGFILE
PARFILE
DUMPFILE

# Filtering Parameters

TABLE_EXISTS_ACTION - tells DP import what to do when a table already exists. You can specify the following values
SKIP - DP will skip if the table exists
APPEND - Appends rows to a table
TRUNCATE- Truncates the table and reloads the data from the export dumpfile.
REPLACE - Drops the table if exists and recreates it and reloads it.

CONTENT
EXCLUDE
INCLUDE
QUERY

Note 1: When you use CONTENT=DATA_ONLY, you cannot use either EXCLUDE or INCLUDE.
Note 2: When you use QUERY option DP will use only external tables data method, rather than direct path method.

# Job-Related Parameters

JOB_NAME
STATUS
PARALLEL

# Import Mode related Parameters

FULL
TABLES
SCHEMAS
TABLESPACES
TRANSPORT_TABLESPACES
TRANSPORT_FULL_CHECK - applicable only if you are using NETWORK_LINK parameter.
TRANSPORT_DATAFILES - used during transportable tablespaces to specify the list of data filesthe job should import into the target database.

# REMAP Parameters

REMAP_SCHEMA - from_schema:to_schema (move objects from one schema to another schema)
REMAP_TABLESPACE - 'source_tbs_name':'target_tbs_name' (Move objects from one tablespace to another tablespace)
REMAP_DATAFILE - 'filename_in_source_platform': 'filename_in_target_platform' (Useful during import to a different platform with different naming convention. It changes the source filename to target filename in the sql statements referenced in dump file.)

# Transform Parameters

TRANSFORM - transform_name:value[:object_type]
transform_name - SEGMENT_ATTRIBUTES=Y, N
STORAGE= Y,N
OID= Y,N
PCTSPCAE
object_type - Which type of objects should be transformed.

# Network Link Parameter

NETWORK_LINK - perform an import across the network without using dump files

# Flashback parameter

FLASHBACK_TIME
FLASHBACK_SCN

Thanks