ORACLE9i 表分析脚本

    
    ORACLE9i 表分析(包含INDEX)的分析脚本，在AIX5.2(ksh)上通过.

####filename:get_ana_sql.sql

set feedback  off
set echo      off
set heading   off
set pagesize  0
set linesize  200
set sqlprompt ""

--oracle 默认比例:      ESTIMATE_PERCENT=>dbms_stats.auto_sample_size
--一般情况 20-40 即可:  ESTIMATE_PERCENT=>20
--同时分析指定表的索引: cascade=>true
--也可以使用 dbms_stats.gether_index_stats 分析index

spool all_analyze.sql

select  'exec dbms_stats.GATHER_TABLE_STATS('||''''||owner||''''
        ||','||''''||table_name||''''
        ||',ESTIMATE_PERCENT=>dbms_stats.auto_sample_size'
        ||',cascade=>true);'
from    dba_tables
where   owner='OSS'
--and     PARTITIONED='YES'
--and     (NUM_ROWS<1000 or last_analyzed is null)
--and     rownum<10
--and     1=2
/

spool off

####filename:run_analyze.sh

user=system
passwd=manager
server=OSSDB
proc_num=40
sleep_sec=10

crt_ana_sql()
{

sqlplus ${user}/${passwd}@${server} <<!

@get_ana_sql.sql

!

}

atp_run_ana()
{

OSNAME=`whoami`

cat all_analyze.sql |while read line
do
   #echo ${line}
   echo ${line}|awk -F"'" '{print $4}'|read table_name 
   echo ${table_name}

   NEXT=1
   while [ ${NEXT} -eq 1 ]
   do
      COUNT=`ps -ef|grep ${OSNAME}|grep sqlplus|grep ${user}|grep -v grep|wc -l`
      if [ ${COUNT} -gt ${proc_num} ]
      then
         echo "sleep"  ${sleep_sec} "seconds ..."
         sleep ${sleep_sec}
      else
         #echo ${line} |nohup sqlplus ${user}/${passwd}@${server} >>./log/ana.log &
         echo ${line} |nohup sqlplus ${user}/${passwd}@${server} >./log/${table_name}.log &
         NEXT=0
      fi
   done
done

}

##############################

date

rm -f all_analyze.sql
rm -f ./log/*.log

crt_ana_sql

atp_run_ana

date

##############################