# 公司名称：夏盛军商贸

## mysql数据库配置信息

host ip: 39.106.63.33
datasource:
    name: yangtangyoupin
    username: yangtangyoupin
    password: 5Fn8eWrbYFtAhCZw

## 数据删除任务

- 用户数据范围暨**用户id集**：wa_users表中的用户id集
- 查询wa_withdraw表中用户id不在用户数据范围内的记录，并写一个删除这些数据的sql

### 1) 查询核对 SQL

```sql
-- 统计孤立提现记录数
SELECT COUNT(*) AS orphan_cnt
FROM wa_withdraw w
WHERE NOT EXISTS (
  SELECT 1 FROM wa_users u WHERE u.id = w.user_id
);

-- 抽样查看前 100 条，核对是否确实需要清理
SELECT w.*
FROM wa_withdraw w
WHERE NOT EXISTS (
  SELECT 1 FROM wa_users u WHERE u.id = w.user_id
)
ORDER BY w.id
LIMIT 100;
```

### 2) 删除 SQL

```sql
DELETE w FROM wa_withdraw w
WHERE NOT EXISTS (
  SELECT 1 FROM wa_users u WHERE u.id = w.user_id
);
```

### 3) 操作备注

- 建议在执行前对 wa_withdraw 做一次备份：`CREATE TABLE wa_withdraw_bak_20260423 AS SELECT * FROM wa_withdraw;`
- 建议先跑 `COUNT(*)` 与 `LIMIT 100` 人工核对，再执行 `DELETE`
- 全程放入事务中执行，确认无误后再 `COMMIT`


## 相关文件