27 lines
838 B
SQL
27 lines
838 B
SQL
-- 2026-09-29 海外退货签收 SKU 箱数增量
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-- MySQL 8.0+；目标数据库：baiyue_lastleg
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-- 可重复执行，不修改既有业务数据。
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SET NAMES utf8mb4;
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USE baiyue_lastleg;
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SET @ddl = IF(
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EXISTS (
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SELECT 1 FROM information_schema.tables
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WHERE table_schema = DATABASE() AND table_name = 'll_return_receipt_item'
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)
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AND NOT EXISTS (
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SELECT 1 FROM information_schema.columns
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WHERE table_schema = DATABASE()
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AND table_name = 'll_return_receipt_item'
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AND column_name = 'box_count'
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),
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'ALTER TABLE ll_return_receipt_item ADD COLUMN box_count BIGINT NULL COMMENT ''本次 SKU 对应箱数'' AFTER received_quantity',
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'SELECT 1'
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);
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PREPARE stmt FROM @ddl;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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SELECT DATABASE() AS target_database, 'll_return_receipt_item.box_count' AS updated_column;
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