It can be done with exp command, but depends on the specific backup.
1. export a full database
exp System / File Manager = Y = log = dible_db Full bible_db
2. database definition without exporting the data derived
exp System / File Manager bible_db = log Y = dible_db Full = n-rows =
3. derive one or a group specifies all the tables user belongs, indexes and other objects
exp System / Manager File = Seapark log = Seapark owner = Seapark
exp System / Manager File = Seapark log = Seapark owner = (Seapark, Amy, amyc, Harold)
Note: export when the user, although this has been the object of all users, but still can not get these object reference any synonyms. The solution is to use the following SQL * Plus to create a command script file, run the script file can get a rebuild all public synonyms executable script seapark belongs to the object, and then run the script can be rebuilt synonyms in the target database.
132 LINESIZE the SET
the SET 0 of PAGESIZE
the SET trimspool the ON
the SPOOL C: \ seapark.syn
the SELECT 'public synonym for the Create' and synonym_name ||
|| 'for' table_owner || || || || table_name '.' ';'
The FROM dba_synonyms
the WHERE table_owner = 'Seapark' the AND owner = 'the PUBLIC';
the SPOOL OFF
4. deriving one or more designated tables
exp seapark / File = log = Tank Seapark Tables Tank Tank =
exp System / File Manager = log = Tank Tank Tables seapark.tank =
exp System / File Manager = Tank Tank = Tables = log (seapark.tank, amy.artist)
5. The estimates derived file size
of all tables total number of bytes:
the SELECT SUM (bytes)
the FROM DBA_SEGMENTS
the WHERE the segment_type = 'tABLE';
total bytes seapark user belongs tables:
the SELECT SUM (bytes)
the FROM DBA_SEGMENTS
the WHERE owner = 'Seapark'
the AND the segment_type = 'TABLE';
The number of bytes in the table aquatic_animal seapark user:
the SELECT SUM (bytes)
DBA_SEGMENTS the FROM
the WHERE owner = 'Seapark'
the AND the segment_type = 'TABLE'
the AND segment_name = 'AQUATIC_ANIMAL';
subset 6. export table data (Oracle8i above)
NT system:
exp System / Query Manager = '= the Where salad_type' FRUIT '' = amy.salad_type Tables
file = log = Fruit Fruit
the UNIX system:
exp system / Query Manager = \ "the Where salad_type = \ 'FRUIT \' \" = amy.salad_type Tables
file = log = Fruit Fruit
7. The splitting a plurality of files an export file
exp System / Manager
file = (paycheck_1, paycheck_2, paycheck_3, paycheck_4)
log = paycheck, Tables. 1G = filesize = hr.paycheck
8. The parameter file
exp System / Manager parfile = bible_tables.par
bible_tables.par profile:
The Sample Used for the Tables at The #export at The Oracle8i Database Administrator's Bible.
File = bible_tables
log = bible_tables
the Tables = (
amy.artist
amy.books
seapark.checkup
seapark.items
)
9. incremental export
"full" incremental export (complete), i.e., entire database backup
exp System / = Complete File Manager INCTYPE 990702.dmp =
"incremental" incremental export (incremental), i.e., the last backup changed data backup
exp System / File Manager INCTYPE = the incremental = 990702.dmp
" accumulative "incremental export (cumulative), i.e. a backup" completely changed after export "data
exp system / manager inctype = cumulative file = 990702.dmp
oracle Backup and Restore
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Origin www.cnblogs.com/nietzsche2019/p/10969237.html
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