在DOS下
导出
exp userid = ehtemp/ehtemp@localdev LOG=exp_dev_ehtemp.log
compress=n
buffer=10000000
file=G:\exp\localdev\exp_dev_ehtemp.DMP
grants=Y
indexes=Y
rows=Y
constraints=Y
owner=ehtemp;导入
imp userid = ehtemp/ehtemp@dev
LOG=imp_dev_ehtemp.log
buffer=10000000
file=G:\exp\localdev\exp_dev_ehtemp.DMP
grants=Y
indexes=Y
rows=Y
Commit=Y
Ignore=N
constraints=Y;
导出
exp userid = ehtemp/ehtemp@localdev LOG=exp_dev_ehtemp.log
compress=n
buffer=10000000
file=G:\exp\localdev\exp_dev_ehtemp.DMP
grants=Y
indexes=Y
rows=Y
constraints=Y
owner=ehtemp;导入
imp userid = ehtemp/ehtemp@dev
LOG=imp_dev_ehtemp.log
buffer=10000000
file=G:\exp\localdev\exp_dev_ehtemp.DMP
grants=Y
indexes=Y
rows=Y
Commit=Y
Ignore=N
constraints=Y;
其实是需要在某个表上加几个字段,但又必须保留原先的数据,所以想先将数据导出到某个文件,然后再导入到新表