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1.ÓʼþÉèÖÃ
[root@sxapp1 mail]# cd /etc/mail
[root@sxapp1 mail]# mv submit.cf submit.cfbak
[root@sxapp1 spool]# chmod a+wrx mqueue/
[root@sxapp1 mail]# echo "sdsdssd"|mail -s "sda"westlife_xu@eyou.com
2.½¨Á¢±¸·ÝĿ¼
[root@sxapp1 mail]# su - oracle
[oracle@sxapp1 oracle]$ mkdir -p /home/oracle/phy_backup/data --±¸·ÝÎļþ´æ·ÅĿ¼
[oracle@sxapp1 oracle]$ mkdir -p /home/oracle/phy_backup/log  --±¸·ÝµÄlog·¾¶
[oracle@sxapp1 oracle]$ cd /home/oracle/phy_backup
 
3.±¸·Ý½Å±¾±àд£¬²âÊÔ£¨½Å±¾Òª¸ù¾ÝÐèÇó΢µ÷£¬ÎÒÒѾ­²âÊÔͨ¹ýÁË£©
[oracle@sxapp1 phy_backup]$ vi exp.sh
#!/bin/sh
. /home/oracle/.bash_profile
#define variable......
backup_date=`date +%Y%m%d`
bak_home=/home                           --df -kÀïÃæ±ØÐëÄÜ¿´¼û
backup_dest=/home/oracle/phy_backup/data --¸ù¾ÝÐèÒªÌîд
backup_log=/home/oracle/phy_backup/log   --¸ù¾ÝÐèÒªÌîд
RECIPT='westlife_xu@eyou.com'            --±¨¾¯ÓʼþÉèÖÃ
 
--¼ì²é´ÅÅ̿ռä
# Check local disk space..................................
USED=` df -k|grep $bak_home|awk '{print $5}'|awk -F% '{print $1}'`
if [ $USED -gt 85 ]; then
       echo "Disk space is full\243\254please check it"|mail -s "exp full backup failed"  $RECIPT
       exit 1
fi
--¿ªÊ¼±¸·Ý
#starting exp backup.....
exp system/abc123 full=y buffer=65536   file=$backup_dest/data_$backup_date.dmp  log=$backup_log/data_$backup_date.log
--ɾ³ý¹ýÆÚµÄ±¸·ÝÎļþ
# delete expired  backup ...
list=` find $backup_dest -mtime +7`
echo $list
rm -f $list
if [ $? -ne 0 ]; then
       cat $backup_log/data_$backup_date.log|mail -s


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SimpleDateFormat sdf = new SimpleDateFormat("yyyy-mm-dd"); 
Date startdate = sdf.parse(start_date);
Date enddate = sdf.parse(end_date);
List list = sess.createCriteria(MyTabel.class)
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oracle ÕÒ³öÁ½±íÖ®¼äÖØ¸´Êý¾Ý

select * from ( select tb1.rollid from (select r.rollid as rollid from zh1_rool r where r.date_p >=to_date('2009-11-26 23:59:59','yyyy-mm-dd hh24:mi:ss') ) tb1
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select max(tb2.rown) from (select t.rowid as rown,t.lot_number as rollid
from inv.mtl_onh ......
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