1.過程自動的生成sql語句刪除所有的表
set heading off
set pagesize 9999
set termout off
set feedback off
set echo off
spool sqlrun.sql
select? ' truncate table '|| table_name||';' from user_tables;
spool off
set echo on
set termout on
set feedback on
2.ed sqlrun.sql
刪除sql語句,與最后的sql語句
3.star sqlrun.sql
刪除調表格