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Format: EXP KEYWORD=value or KEYWORD=(value1,value2,…,valueN)
Example: EXP SCOTT/TIGER GRANTS=Y TABLES=(EMP,DEPT,MGR)
or TABLES=(T1:P1,T1:P2), if T1 is partitioned table
Keyword Description (Default)
————————————————————–
USERID username/password
BUFFER size of data buffer
FILE output files (EXPDAT.DMP)
COMPRESS import into one extent (Y)
GRANTS export grants (Y)
INDEXES export indexes (Y)
DIRECT direct path (N)
LOG log file of screen output
ROWS export data rows (Y)
CONSISTENT cross-table consistency(N)
FULL export entire file (N)
OWNER list of owner usernames
TABLES list of table names
RECORDLENGTH length of IO record
INCTYPE incremental export type
RECORD track incr. export (Y)
TRIGGERS export triggers (Y)
STATISTICS analyze objects (ESTIMATE)
PARFILE parameter filename
CONSTRAINTS export constraints (Y)
OBJECT_CONSISTENT transaction set to read only during object export (N)
FEEDBACK display progress every x rows (0)
FILESIZE maximum size of each dump file
FLASHBACK_SCN SCN used to set session snapshot back to
FLASHBACK_TIME time used to get the SCN closest to the specified time
QUERY select clause used to export a subset of a table
RESUMABLE suspend when a space related error is encountered(N)
RESUMABLE_NAME text string used to identify resumable statement
RESUMABLE_TIMEOUT wait time for RESUMABLE
TTS_FULL_CHECK perform full or partial dependency check for TTS
TABLESPACES list of tablespaces to export
TRANSPORT_TABLESPACE export transportable tablespace metadata (N)
TEMPLATE template name which invokes iAS mode export
The Export and Import tools support four modes of operation
FULL :Exports all the objects in all schemas
OWNER :Exports objects only belonging to the given OWNER
TABLES :Exports Individual Tables
TABLESPACE :Export all objects located in a given TABLESPACE.
Using Import Utility
Objects exported by export utility can only be imported by Import utility. Import utility can run in Interactive mode or command line mode.
You can let Import prompt you for parameters by entering the IMP command followed by your username/password:
Example: IMP SCOTT/TIGER
Or, you can control how Import runs by entering the IMP command followed
by various arguments. To specify parameters, you use keywords:
Format: IMP KEYWORD=value or KEYWORD=(value1,value2,…,valueN)
Example: IMP SCOTT/TIGER IGNORE=Y TABLES=(EMP,DEPT) FULL=N
or TABLES=(T1:P1,T1:P2), if T1 is partitioned table
USERID must be the first parameter on the command line.
| Keyword | Description (Default) |
| USERID | username/password |
| BUFFER | size of data buffer |
| FILE | input files (EXPDAT.DMP) |
| SHOW | just list file contents (N) |
| IGNORE | ignore create errors (N) |
| GRANTS | import grants (Y) |
| INDEXES | import indexes (Y) |
| ROWS | import data rows (Y) |
| LOG | log file of screen output |
| FULL | import entire file (N) |
| FROMUSER | list of owner usernames |
| TOUSER | list of usernames |
| TABLES | list of table names |
| RECORDLENGTH | length of IO record |
| INCTYPE | incremental import type |
| COMMIT | commit array insert (N) |
| PARFILE | parameter filename |
| CONSTRAINTS | import constraints (Y) |
| DESTROY | overwrite tablespace data file (N) |
| INDEXFILE | write table/index info to specified file |
| SKIP_UNUSABLE_INDEXES | skip maintenance of unusable indexes (N) |
| FEEDBACK | display progress every x rows(0) |
| TOID_NOVALIDATE | skip validation of specified type ids |
| FILESIZE | maximum size of each dump file |
| STATISTICS | import precomputed statistics (always) |
| RESUMABLE | suspend when a space related error is encountered(N) |
| RESUMABLE_NAME | text string used to identify resumable statement |
| RESUMABLE_TIMEOUT | wait time for RESUMABLE |
| COMPILE | compile procedures, packages, and functions (Y) |
| STREAMS_CONFIGURATION | import streams general metadata (Y) |
| STREAMS_INSTANITATION | import streams instantiation metadata (N) |
Example Importing Individual Tables
To import individual tables from a full database export dump file give the following command
$imp scott/tiger FILE=myfullexp.dmp FROMUSER=scott TABLES=(emp,dept)
This command will import only emp, dept tables into Scott user and you will get a output similar to as shown below
Export file created by EXPORT:V10.00.00 via conventional path
import done in WE8DEC character set and AL16UTF16 NCHAR character set
. importing SCOTT’s objects into SCOTT
. . importing table ”DEPT” 4 rows imported
. . importing table ”EMP” 14 rows imported
Import terminated successfully without warnings.
