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create trigger biufer_employees_department_id
before insert or update
of department_id
on employees
referencing old as old_value
new as new_value
for each row
when (new_value.department_id<>80 )
begin
:new_value.commission_pct :=0;
end;
/
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sql>create directory dpdata1 as '/u02/dpdata1';
sql>grant read, write on directory dpdata1 to ananda;
$expdp ananda/abc123 tables=CASES directory=DPDATA1 dumpfile=expCASES.dmp job_name=CASES_EXPORT
$expdp ananda/abc123 tables=CASES directory=DPDATA1
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ORACLE EXPDP/IMPDP
2010-01-22 17:07
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DIRECTORY¶ÔÏóȨÏÞ.
CREATE DIRECTORY dump dir AS ‘DUMP’;
GRANT READ, WIRTE ON DIRECTORY dump_dir TO
scott;
1,µ¼³ö±í
Expdp scott/tiger DIRECTORY=dump_dir
DUMPFILE=tab.dmp TABLES=dept,emp
2,µ¼³ö·½°¸
Expdp scott/tiger DIRECTORY=dump_dir
DUMPFILE=schema.dmp
SCHEMAS=system,scott
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Expdp system/manager DIRECTORY=dump_dir
DUMPFILE=tablespace.dmp
TABLESPACES=user01,user02
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Expdp system/manager DIRECTORY=dump_dir
DUMPFILE=full.dmp FULL=Y
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