mysql 复制数据库，更改租户、定时任务等

1.更改所有表租户id

1.1、动态生成所有表的更新语句，且有租户字段（tenant_id）的才需要更新，没有不更新。

sql 复制代码

SELECT CONCAT('UPDATE `', t.table_name, '` SET tenant_id = ''新租户'' WHERE tenant_id = ''旧租户'';')
FROM information_schema.tables t
JOIN information_schema.columns c 
  ON c.table_schema = t.table_schema 
  AND c.table_name = t.table_name
WHERE t.table_schema = '你的数据库名'
  AND t.table_type = 'BASE TABLE'
  AND c.column_name = 'tenant_id';

1.2、复制结果执行

sql 复制代码

-- 1. 先禁用外键检查（避免约束报错）
SET FOREIGN_KEY_CHECKS = 0;

-- 2. 遍历所有表，批量更新 tenant_id
UPDATE table1 SET tenant_id = 200 WHERE tenant_id = 100;
-- 动态生成所有表的更新语句
-- 复制结果执行

-- 3. 恢复外键检查
SET FOREIGN_KEY_CHECKS = 1;

2.复制定时任务（xxl-job）

字段job_group为执行器表xxl_job_group的id

sql 复制代码

INSERT INTO `enuo-xxl-job`.`xxl_job_info`(`job_group`, `job_cron`, `job_desc`, `add_time`, `update_time`, `author`, `alarm_email`, `executor_route_strategy`, `executor_handler`, `executor_param`, `executor_block_strategy`, `executor_timeout`, `executor_fail_retry_count`, `glue_type`, `glue_source`, `glue_remark`, `glue_updatetime`, `child_jobid`, `trigger_status`, `trigger_last_time`, `trigger_next_time`) 
SELECT
	13 job_group,
	job_cron,
	job_desc,
	add_time,
	update_time,
	author,
	alarm_email,
	executor_route_strategy,
	executor_handler,
	executor_param,
	executor_block_strategy,
	executor_timeout,
	executor_fail_retry_count,
	glue_type,
	glue_source,
	glue_remark,
	glue_updatetime,
	child_jobid,
	trigger_status,
	trigger_last_time,
	trigger_next_time
FROM
	`enuo-xxl-job`.xxl_job_info 
WHERE
	`job_group` = '10'
	order by id;