73 lines
2.5 KiB
SQL
73 lines
2.5 KiB
SQL
-- =============================================================================
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-- 历史数据刷新：预计细胞数量 单位「亿」→「千万」（数值 ×10）
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-- =============================================================================
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--
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-- 适用：biz_cell_product.expected_cell_count 历史数据按「亿」录入的环境（仅执行一次）。
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-- 执行后：库中数值与界面、API 均为「千万」（例：1000万细胞 → 存 1）。
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--
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-- 注意：
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-- 1. 执行前请备份 biz_cell_product 表
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-- 2. 请勿重复执行（重复 ×10 会导致数据错误）
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-- 3. 若下方「迁移前检查」显示 column_comment 已含「单位:千万」，说明已迁移，跳过第 2 段
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--
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-- =============================================================================
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-- 1. 迁移前检查（建议先单独执行本段）
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-- =============================================================================
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SELECT COLUMN_COMMENT AS current_unit_comment
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FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'biz_cell_product'
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AND COLUMN_NAME = 'expected_cell_count';
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SELECT COUNT(*) AS pending_rows
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FROM `biz_cell_product`
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WHERE `del_flag` = 0
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AND `expected_cell_count` IS NOT NULL;
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SELECT
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`product_code`,
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`expected_cell_count` AS value_before_yi,
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`expected_cell_count` * 10 AS value_after_qianwan
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FROM `biz_cell_product`
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WHERE `del_flag` = 0
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AND `expected_cell_count` IS NOT NULL
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ORDER BY `update_time` DESC
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LIMIT 10;
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-- =============================================================================
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-- 2. 正式迁移（确认检查无误后执行）
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-- =============================================================================
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START TRANSACTION;
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UPDATE `biz_cell_product`
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SET `expected_cell_count` = `expected_cell_count` * 10
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WHERE `del_flag` = 0
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AND `expected_cell_count` IS NOT NULL;
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ALTER TABLE `biz_cell_product`
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MODIFY COLUMN `expected_cell_count` DECIMAL(18,4) DEFAULT NULL
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COMMENT '预计细胞数量(单位:千万)';
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COMMIT;
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-- =============================================================================
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-- 3. 迁移后校验
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-- =============================================================================
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SELECT COLUMN_COMMENT AS unit_comment_after_migrate
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FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'biz_cell_product'
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AND COLUMN_NAME = 'expected_cell_count';
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SELECT
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`product_code`,
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`expected_cell_count`
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FROM `biz_cell_product`
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WHERE `del_flag` = 0
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AND `expected_cell_count` IS NOT NULL
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ORDER BY `update_time` DESC
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LIMIT 10;
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