数据库重命名脚本

由于原本的数据库命名不规范，需要进行重新命名，最终确定方案为新建数据库后迁移表，以下为脚本。

#!/bin/bashecho -e "\033[34m 此脚本功能为修改数据库名称（需要新建数据库后将数据迁移到新数据库），请在能执行mysql命令的服务器执行！！ \033[0m"
echo -e "\033[34m 警告！！执行本操作前请备份数据库 \033[0m"function printConsole(){echo ""echo -e "\033[34m  1.重命名TEST数据库 \033[0m"echo -e "\033[34m  2.重命名自定义数据库 \033[0m"echo ""echo ====================================echo ""read -p "Select Number(Ctrl+C to EXIT):" numecho ""export NUM="$num"
}function renameTest(){read -p "请输入TEST系统MySQL IP：（默认localhost）" testMysqlHostif [ -z "${testMysqlHost}" ];thentestMysqlHost='localhost'fiexport TEST_MYSQL_HOST="$testMysqlHost"read -p "请输入TEST系统MYSQL PORT：（默认3306）" testMysqlPortif [ -z "${testMysqlPort}" ];thentestMysqlPort='3306'fiexport TEST_MYSQL_PORT="$testMysqlPort"read -p "请输入TEST系统Mysql用户名：" testMysqlUserNameexport TEST_MYSQL_USER_NAME="$testMysqlUserName"read -p "请输入TEST系统Mysql密码：" testMysqlPasswordexport TEST_MYSQL_PASSWORD="$testMysqlPassword"ifCreateNew='Y'export IF_CREATE_NEW_DB="$ifCreateNew"ifDeleteOld='Y'export IF_DELETE_OLD_DB="$ifDeleteOld"echo -e "\033[34m 重命名test auth数据库 \033[0m"export OLD_DB_NAME="test-auth"export NEW_DB_NAME="test_auth"renameecho -e "\033[34m 重命名test db数据库 \033[0m"export OLD_DB_NAME="test-db"export NEW_DB_NAME="test_db"renameecho -e "\033[34m 重命名test nacos数据库 \033[0m"export OLD_DB_NAME="test-register-config"export NEW_DB_NAME="test_register_config"rename
}function configParam(){read -p "请输入MySQL IP：（默认localhost）" testMysqlHostif [ -z "${testMysqlHost}" ];thentestMysqlHost='localhost'fiexport TEST_MYSQL_HOST="$testMysqlHost"read -p "请输入MYSQL PORT：（默认3306）" testMysqlPortif [ -z "${testMysqlPort}" ];thentestMysqlPort='3306'fiexport TEST_MYSQL_PORT="$testMysqlPort"read -p "请输入Mysql用户名：" testMysqlUserNameexport TEST_MYSQL_USER_NAME="$testMysqlUserName"read -p "请输入Mysql密码：" testMysqlPasswordexport TEST_MYSQL_PASSWORD="$testMysqlPassword"read -p "请输入旧数据库名称：" olddbexport OLD_DB_NAME="$olddb"read -p "请输入新数据库名称：" newdbexport NEW_DB_NAME="$newdb"read -p "是否需要创建新数据库（ Y/N 默认 Y ）：" ifCreateNewif [ -z "${ifCreateNew}" ];thenifCreateNew='Y'fiexport IF_CREATE_NEW_DB="$ifCreateNew"read -p "是否需要删除旧数据库（ Y/N 默认 N 建议手动删除 ）：" ifDeleteOldif [ -z "${ifDeleteOld}" ];thenifDeleteOld='N'fiexport IF_DELETE_OLD_DB="$ifDeleteOld"
}function rename(){mysqlconn="mysql -u ${TEST_MYSQL_USER_NAME} -p${TEST_MYSQL_PASSWORD} -S /var/lib/mysql/mysql.sock -h ${TEST_MYSQL_HOST} -P ${TEST_MYSQL_PORT}"#创建新数据库if [[ ${IF_CREATE_NEW_DB} == "Y" ]];then$mysqlconn -e "CREATE DATABASE ${NEW_DB_NAME} CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci"fi#查询数据库表params=$($mysqlconn -N -e "SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE table_schema='${OLD_DB_NAME}'")tableParma="\`"#数据库表迁移for name in $paramsdo$mysqlconn -e "RENAME TABLE $tableParam${OLD_DB_NAME}$tableParam.$tableParam$name$tableParam to $tableParam${NEW_DB_NAME}$tableParam.$tableParam$name$tableParam"$mysqlconn -e "ALTER TABLE ${NEW_DB_NAME}.$name CHARACTER SET = utf8mb4, COLLATE = utf8mb4_unicode_ci"echo -e "\033[34m 数据表$name 已迁移至新数据库${NEW_DB_NAME} \033[0m"done#删除旧数据库if [[ $ifDeleteOld == "Y" ]];then$mysqlconn -e "DROP DATABASE $tableParam${OLD_DB_NAME}$tableParam"fi#$mysqlconn -e "DROP DATABASE $olddb"
}function callback(){case $NUM in1)renameTestprintConsolecallback;;2)configParamrenameprintConsolecallback;;*)echo -e "\033[31m 输入错误，请重新输入！！ \033[0m"printConsolecallbackesac
}printConsole
callback