shell脚本操作mysql数据库删除重复的数据
由于之前的业务，造成数据库上产生了脏数据，写个脚本删除重复的数据。由于是开发测试环境，所以选择任意删除相同uid中的一条。由于每次执行只删除重复数据的一条，需要重复执行，如果本轮没有数据被删就OK
#!/bin/sh
#deleteallcompany'sduplicateuid
MYSQL_BIN_PATH=/data/mysql/server/mysql_3306/bin
MYSQL_SOCK_PATH=/data/mysql/server/mysql_3306/tmp
DBUSER=dbuser
DBPWD=userpwd
DBHOSTNAME=192.168.1.105
PORT=3306
#getallcompany_id
forcompany_idin`${MYSQL_BIN_PATH}/mysql-u${DBUSER}-p${DBPWD}-h${DBHOSTNAME}-P${PORT}--socket=${MYSQL_SOCK_PATH}/mysql.sock-e"
SELECTcompany_idFROMcompany.companypage;"`
do
if[$company_id!="company_id"];then
#if[$company_id-eq2733];then
suffix=`expr${company_id}%100`
foruser_idin`${MYSQL_BIN_PATH}/mysql-u${DBUSER}-p${DBPWD}-h${DBHOSTNAME}-P${PORT}--socket=${MYSQL_SOCK_PATH}/mysql.sock-e"
SELECTuser_idFROMcompany.company_candidate_${suffix}WHEREcompany_id=${company_id}ANDuser_id>0GROUPBYcompany_id,user_idHAVINGCOUNT(user_id)>1;"`
do
if[$user_id!="user_id"];then
${MYSQL_BIN_PATH}/mysql-u${DBUSER}-p${DBPWD}-h${DBHOSTNAME}-P${PORT}--socket=${MYSQL_SOCK_PATH}/mysql.sock-e"
DELETEFROMcompany.company_candidate_${suffix}WHEREcompany_id=${company_id}anduser_id=${user_id}limit1;"
echo"deletefromcompany_candidate_${suffix}wherecompany_id=${company_id}anduser_id=${user_id}limit1"
fi
done
#fi
fi
done
exit0
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