生产sql调优之统计信息分析(89天)

if [ -z "$1" ]; then
 echo "no process has provided!"
 exit 0
fi
sh_tmp_process=`sqlplus -silent $DB_CONN_STR@$SH_DB_SID <<END
set pagesize 0 feedback off verify off heading on echo off
select addr from v\$process where spid=$1;
exit;
END`
if [ -z "$sh_tmp_process" ]; then
 echo "no process exists or session is not from a DB account"
 echo
 echo "####### Process Information from OS level as below ########"
 ps -ef|grep $1|grep -v "grep"|grep ora
 echo "##############################################"
 exit 0
else
 echo '*******************************************'
 echo "Process has found, pid: $1  ,  addr: $sh_tmp_process    "
 echo
 echo "####### Process Information from OS level as below ########"
 ps -ef|grep $1|grep -v grep|grep ora
 echo "##############################################"
 sqlplus -s $DB_CONN_STR@$SH_DB_SID <<EOF
col machine format a20
col terminal format a15
col osuser format a15
col process format a15
col username format a15
set linesize 150
select sid,serial#,username,osuser ,machine,process,terminal,type,to_char(LOGON_TIME,'yyyy-mm-dd hh24:mi:ss')login_time from v$session
where paddr='$sh_tmp_process';
prompt .
col sql_id format a30
col prev_sql_id format a30
col sql_text format a60
set linesize 150
set pages 50
select sql_id,sql_text from v$sql where sql_id in (select sql_id from v$session where paddr='$sh_tmp_process' and sql_id is not null  ) and rownum<2;
select sql_id prev_sql_id ,sql_text from v$sql where sql_id in (select prev_sql_id sql_id from v$session where paddr='$sh_tmp_process'  ) and rownum<2;
EOF
fi

SELECT DISTINCT 'K',
                AR.RESOURCE_VALUE,
                AR.RESOURCE_TYPE,
                GREATEST(TO_CHAR(AR.EFFECTIVE_DATE, 'YYYYMMDDHH24MISS'),
                         TO_CHAR(SB.EFFECTIVE_DATE, 'YYYYMMDDHH24MISS')),
                LEAST(NVL(TO_CHAR(AR.EXPIRATION_DATE, 'YYYYMMDDHH24MISS'),
                          '47001231000000'),
                      NVL(TO_CHAR(SB.EXPIRATION_DATE, 'YYYYMMDDHH24MISS'),
                          '47001231000000')),
                AR.AGR_NO,
                SB.MEDIUM_CUS_ID,
                SB.SUB_STATUS,
                SB.BUSINESS_ENTITY_ID,
                SB.LANGUAGE,
                SB.ROUTING_POLICY_ID,
                SB.L9_PORT_IND,
                SB.L9_SPLIT_PERIOD
  FROM HUGE_RESOURCE AR,
       MEDIUM_SUB SB,
       (select /*+ RESULT_CACHE */
        DISTINCT PARAM_NAME as PARAM_NAME
          from SMALL_PARAM
         where GUIDING_IND = 'Y') OP,
       MEDIUM_CUS CS
WHERE AR.AGR_NO = 1056851
   AND AR.AGREEMENT_KEY = MOD(1056851, 100)
   AND (AR.RESOURCE_STATE != 'F' OR AR.RESOURCE_STATE IS NULL)
   AND AR.RANGE_IND = 'N'
   AND SB.MEDIUM_SUB_NO = AR.AGR_NO
   AND EXISTS
(select /*+ INDEX(OP SMALL_PARAM_1IX) */
         1
          from SMALL_PARAM OP
         where OP.PARAM_NAME in (AR.RESOURCE_PRM_CD, AR.BASE_PARAM_NAME) )
   AND SB.MEDIUM_CUS_ID = CS.MEDIUM_CUS_ID
   AND (SB.EXPIRATION_DATE IS NULL OR SB.EXPIRATION_DATE >= to_date('19000101000000','YYYYMMDDHH24MISS'))
   AND (AR.EXPIRATION_DATE IS NULL OR AR.EXPIRATION_DATE >= to_date('19000101000000','YYYYMMDDHH24MISS'))
   AND (AR.EFFECTIVE_DATE < SB.EXPIRATION_DATE OR
       SB.EXPIRATION_DATE IS NULL)
   AND (AR.EXPIRATION_DATE IS NULL OR
       AR.EXPIRATION_DATE > SB.EFFECTIVE_DATE)
   AND SB.SUB_STATUS != 'T'
UNION ALL
SELECT DISTINCT 'K',
                AR.RESOURCE_VALUE,
                AR.RESOURCE_TYPE,
                GREATEST(TO_CHAR(AR.EFFECTIVE_DATE, 'YYYYMMDDHH24MISS'),
                         TO_CHAR(SH.EFFECTIVE_DATE, 'YYYYMMDDHH24MISS')),
                LEAST(NVL(TO_CHAR(AR.EXPIRATION_DATE, 'YYYYMMDDHH24MISS'),
                          '47001231000000'),
                      NVL(TO_CHAR(SH.EXPIRATION_DATE, 'YYYYMMDDHH24MISS'),
                          '47001231000000')),
                AR.AGR_NO,
                SH.MEDIUM_CUS_ID,
                SH.SUB_STATUS,
                SH.BUSINESS_ENTITY_ID,
                SH.LANGUAGE,
                SH.ROUTING_POLICY_ID,
                SH.L9_PORT_IND,
                SH.L9_SPLIT_PERIOD
  FROM HUGE_RESOURCE AR,
       MEDIUM_SUB_HISTORY SH,
       (select /*+ RESULT_CACHE */
        DISTINCT PARAM_NAME as PARAM_NAME
          from SMALL_PARAM
         where GUIDING_IND = 'Y') OP,
       MEDIUM_CUS CS
WHERE AR.AGR_NO = 1056851
   AND AR.AGREEMENT_KEY = MOD(1056851, 100)
   AND (AR.RESOURCE_STATE != 'F' OR AR.RESOURCE_STATE IS NULL)
   AND AR.RANGE_IND = 'N'
   AND SH.MEDIUM_SUB_NO = AR.AGR_NO
   AND EXISTS
(select /*+ INDEX(OP SMALL_PARAM_1IX) */
         1
          from SMALL_PARAM OP
         where OP.PARAM_NAME in (AR.RESOURCE_PRM_CD, AR.BASE_PARAM_NAME))
   AND SH.MEDIUM_CUS_ID = CS.MEDIUM_CUS_ID
   AND (SH.EXPIRATION_DATE IS NULL OR SH.EXPIRATION_DATE >= to_date('19000101000000','YYYYMMDDHH24MISS'))
   AND (AR.EXPIRATION_DATE IS NULL OR AR.EXPIRATION_DATE >= to_date('19000101000000','YYYYMMDDHH24MISS'))
   AND (AR.EFFECTIVE_DATE < SH.EXPIRATION_DATE OR
       SH.EXPIRATION_DATE IS NULL)
   AND (AR.EXPIRATION_DATE IS NULL OR
       AR.EXPIRATION_DATE > SH.EFFECTIVE_DATE)
   AND SH.SUB_STATUS NOT IN ('C', 'T')

exec DBMS_STATS.GATHER_TABLE_STATS(OWNNAME=> NULL, TABNAME => 'HUGE_RESOURCE',    CASCADE => TRUE,METHOD_OPT =>'FOR ALL INDEXED COLUMNS SIZE 1', ESTIMATE_PERCENT => 40 , DEGREE =>  8,GRANULARITY =>'ALL');