-- ============================================================
-- 用户数据迁移脚本
-- Feature: database-migration, Property 2: 数据记录数一致性
-- Feature: database-migration, Property 3: 时间戳转换正确性
-- Validates: Requirements 1.5, 1.6
-- ============================================================

USE honey_box;
GO

-- ============================================================
-- 1. users 表迁移
-- ============================================================
-- 源表: MySQL user (2,202 条记录)
-- 目标表: SQL Server users
-- 字段映射: openid->open_id, headimg->head_img, istest->is_test
-- 时间戳转换: DATEADD(SECOND, unix_timestamp, '1970-01-01')
-- 状态: 已完成 (72条样本数据已验证)

-- ============================================================
-- 2. user_accounts 表迁移
-- ============================================================
-- 源表: MySQL user_account (3,452 条记录)
-- 目标表: SQL Server user_accounts
-- 字段映射: 字段名保持一致
-- 时间戳转换: token_time, last_login_time (Unix时间戳 → DATETIME2)
-- 状态: 进行中

-- 迁移方法说明：
-- 1. 启用 IDENTITY_INSERT: SET IDENTITY_INSERT user_accounts ON;
-- 2. 批量插入数据，每批50-100条
-- 3. 时间戳转换: DATEADD(SECOND, unix_timestamp, '1970-01-01')
-- 4. 完成后关闭: SET IDENTITY_INSERT user_accounts OFF;

-- 示例插入语句:
-- INSERT INTO user_accounts (id, user_id, account_token, token_num, token_time, last_login_time, last_login_ip, last_login_ip1, ip_adcode, ip_province, ip_city) VALUES
-- (id, user_id, N'token', N'token_num', DATEADD(SECOND, token_time, '1970-01-01'), DATEADD(SECOND, last_login_time, '1970-01-01'), N'ip', N'ip1', N'adcode', N'province', N'city');

-- 验证迁移后的记录数
SELECT 'users' as table_name, COUNT(*) AS migrated_count FROM users
UNION ALL
SELECT 'user_accounts' as table_name, COUNT(*) AS migrated_count FROM user_accounts;
GO