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1 spool
spool d:\test\table.dat
select * from table_name;
spool off
2 sqlplus user/password@sid @test.sql > table.dat
test.sql
select * from table_name;
exit;
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--ɾ³ýij¸öÓû§ÏµĶÔÏó
set heading off;
set feedback off;
spool c:\dropobj.sql;
prompt --Drop constraint
select 'alter t ......
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