Analyze Tables and Indexes (for Better Performance)

 

Below, I have shown an example on how to pass parameters to a script:
####################################################################
## analyze_table.sh ##
####################################################################
#!/bin/ksh #
input parameter: 1: password # 2: SID if (($#<1)) then echo "Please enter
'oracle'
user password as the first parameter !" exit 0 fi if (($#<2)) then echo
"Please enter
instance name as the second parameter!" exit 0 fi
To execute the script with parameters, type:
$ analyze_table.sh manager oradb1

The first part of script generates a file analyze.sql, which contains the  syntax for analyzing table. The second part of script analyzes all the  tables:
#####################################################################
## analyze_table.sh ##
#####################################################################
sqlplus -s <<!
oracle/$1@$2
set heading off
set feed off
set pagesize 200
set linesize 100
spool analyze_table.sql
select 'ANALYZE TABLE ' || owner || '.' || segment_name ||
       ' ESTIMATE STATISTICS SAMPLE 10 PERCENT;'
from dba_segments
where segment_type = 'TABLE'
and owner not in ('SYS', 'SYSTEM');
spool off
exit
!
sqlplus -s <<!
oracle/$1@$2
@./analyze_table.sql
exit
!  

Here is an example of analyze.sql:
$ cat analyze.sql
ANALYZE TABLE HIRWIN.JANUSAGE_SUMMARY ESTIMATE STATISTICS SAMPLE 10 PERCENT;
ANALYZE TABLE HIRWIN.JANUSER_PROFILE ESTIMATE STATISTICS SAMPLE 10 PERCENT;
ANALYZE TABLE APPSSYS.HIST_SYSTEM_ACTIVITY ESTIMATE STATISTICS SAMPLE 10 PERCENT;
ANALYZE TABLE HTOMEH.QUEST_IM_VERSION ESTIMATE STATISTICS SAMPLE 10 PERCENT;
ANALYZE TABLE JSTENZEL.HIST_SYS_ACT_0615 ESTIMATE STATISTICS SAMPLE 10 PERCENT;
ANALYZE TABLE JSTENZEL.HISTORY_SYSTEM_0614 ESTIMATE STATISTICS SAMPLE 10 PERCENT;
ANALYZE TABLE JSTENZEL.CALC_SUMMARY3 ESTIMATE STATISTICS SAMPLE 10 PERCENT;
ANALYZE TABLE IMON.QUEST_IM_LOCK_TREE ESTIMATE STATISTICS SAMPLE 10 PERCENT;
ANALYZE TABLE APPSSYS.HIST_USAGE_SUMMARY ESTIMATE STATISTICS SAMPLE 10 PERCENT;
ANALYZE TABLE PATROL.P$LOCKCONFLICTTX ESTIMATE STATISTICS SAMPLE 10 PERCENT;