MySQL怎么进行批量更新和删除数据shell脚本

#!/bin/bash

. ~/.bash_profile

log=/tmp/update_log_1_$(date +%F).log

vstart=1

step=100

vstop=$((${vstart}+${step}))

max=50000

USER='yoon'

PWD='yoon123!@#'

HOST=127.0.0.1

DB=yoon

PORT=3306

TB=employees_ptarc

echo "stop value is $vstop"

while [ ${vstart} -lt $((${max}+1)) ]

do

echo "`date +%F-%T`; /usr/local/mysql/bin/mysql -h${HOST} -u${USER} -p${PWD} -P${PORT} ${DB} -e\"UPDATE ${TB} set v_int=9 where id between ${vstart} and ${vstop}\"" >> ${log}

/usr/local/mysql/bin/mysql -h${HOST} -u${USER} -p${PWD} -P${PORT} ${DB} -e"UPDATE ${TB} set v_int=9 where id between ${vstart} and ${vstop} "

vstart=$((${vstop}+1))

vstop=$((${vstop}+${step}))

if [ ${vstop} -gt ${max} ]; then

vstop=${max}

fi

sleep 1

#echo "start at ${vstart}, stop at ${vstop}"

done