oracle ±¸·Ý,±í¿Õ¼ä¼ì²éshell½Å±¾´úÂë
#!/bin/ksh
#****************************************************************************
#
# (C) Copyright CPIC. 2008
#
# File name: check_db_alert.sh
# Project: Database Alerts Check
#
# Parameter : app_name -- name of db application(=oracle_sid)
# ipaddress -- ip of the db server
#
# Creation Date: Aug 19, 2008
# Origin Author: Shangkun Peng
#
#
# Prerequisites:
# before using this shell script, directory $DAILY_CHECK must be created
# and this shell script should be put into it.
# for each application, environment file $DBENVFILE must be put into it.
# also, variables for auto ftp must be set
#
# Limitations:
# this shell script can be run at most once an hour
# additional job can be added but variable JOB_LIST must be modified
# and relative function must be coded too
#
#****************************************************************************
# record start date and time
echo "------------------------------------------------------------"
echo "database information collect started at:"; date
# check necessary parameter(s)
if [ $# -ne 2 ]
then
echo "ERROR: parameter(s) not supplied correctly"
echo "USAGE: check_db_alert.sh app_name ipaddress"
echo "WHERE:"
echo "app_name -- name of db application"
echo "ipaddress -- ip of the db server"
exit 1
fi
# -----------------------------------------------------------------------------------------------------------
# DEFINE VALUES FOR VARIABLES IN THIS SHELL
# general variables, can not be modified
APP_NAME=$1 # name of db application
IPADDRESS=$2 # ip of db server
DAILY_CHECK=/tmp/db_dailycheck # directory for information collection of db application
DBENVFILE=$APP_NAME".dbenv"&
Ïà¹ØÎĵµ£º
¡¡ ¹ØÓÚOracleµÄÐÔÄܵ÷Õû£¬Ò»°ã°üÀ¨Á½¸ö·½Ã棬һÊÇÖ¸OracleÊý¾Ý¿â±¾ÉíµÄµ÷Õû£¬±ÈÈçSGA¡¢PGAµÄÓÅ»¯ÉèÖ㬶þÊÇÁ¬½ÓOracleµÄÓ¦ÓóÌÐòÒÔ¼°SQLÓï¾äµÄÓÅ»¯¡£×öºÃÕâÁ½¸ö·½ÃæµÄÓÅ»¯£¬¾Í¿ÉÒÔʹһÌ×ÍêÕûµÄOracleÓ¦ÓÃϵͳ´¦ÓÚÁ¼ºÃµÄÔËÐÐ״̬¡£
¡¡¡¡ ±¾ÎÄÖ÷ÒªÊǰÑһЩOracle TuningµÄÎÄÕÂ×÷ÁËÒ»¸ö¼òµ¥µÄ×ܽᣬ ......
1¡¢µÇ¼·½·¨:£ºsys or systemµÇ¼
Õ˺ţºsystem
ÃÜÂ룺system as sysdba---------¡·ÃÜÂë+as sysdba
conn system/password as sysdba
ʹÓÃÃüÁ
sql>alter user scott account unlock;
sql> commit;
Í ......
INSTR·½·¨µÄ¸ñʽΪ
INSTR(Ô´×Ö·û´®, Ä¿±ê×Ö·û´®, ÆðʼλÖÃ, Æ¥ÅäÐòºÅ)
ÀýÈ磺INSTR('CORPORATE FLOOR','OR', 3, 2)ÖУ¬Ô´×Ö·û´®Îª'CORPORATE FLOOR', Ä¿±ê×Ö·û´®Îª'OR'£¬ÆðʼλÖÃΪ3£¬È¡µÚ2¸öÆ¥ÅäÏîµÄλÖá£
ĬÈϲéÕÒ˳ÐòΪ´Ó×óµ½ÓÒ¡£µ±ÆðʼλÖÃΪ¸ºÊýµÄʱºò£¬´ÓÓұ߿ªÊ¼²éÕÒ¡£
ËùÒÔSELECT INSTR('CORPORATE FLOOR', 'O ......
Êý¾Ý¿âÊÇÒ»¸ö¶àÓû§Ê¹ÓõĹ²Ïí×ÊÔ´¡£µ±¶à¸öÓû§²¢·¢µØ´æÈ¡Êý¾Ýʱ£¬ÔÚÊý¾Ý¿âÖоͻá²úÉú¶à¸öÊÂÎñͬʱ´æÈ¡Í¬Ò»Êý¾ÝµÄÇé¿ö¡£Èô¶Ô²¢·¢²Ù×÷²»¼Ó¿ØÖƾͿÉÄÜ»á¶ÁÈ¡ºÍ´æ´¢²»ÕýÈ·µÄÊý¾Ý£¬ÆÆ»µÊý¾Ý¿âµÄÒ»ÖÂÐÔ¡£
¼ÓËøÊÇʵÏÖÊý¾Ý¿â²¢·¢¿ØÖƵÄÒ»¸ö·Ç³£ÖØÒªµÄ¼¼Êõ¡£µ±ÊÂÎñÔÚ¶Ôij¸öÊý¾Ý¶ÔÏó½øÐвÙ×÷ǰ£¬ÏÈÏòϵͳ·¢³öÇëÇó£¬¶ÔÆä¼ÓËø¡£¼ÓËøºó ......