-- 仓储表 C_* → c_*（小写 c 前缀）
-- 不依赖 DELIMITER / 存储过程，Navicat、DMS、mysql 命令行均可整段执行
-- 可重复执行
--
-- 说明：
-- 1) 若库已开启 lower_case_table_names（Windows/部分云库），建表时 C_sku 磁盘上已是 c_sku，
--    无需 RENAME，部署新代码即可；下方「诊断」应只看到 c_*。
-- 2) Linux 且区分大小写时，须经临时表名两步改名，否则可能报 Table 'c_sku' already exists。
-- 3) 执行前请确认已 USE 到业务库（DATABASE() 不能为 NULL）。

-- ========== 诊断（先看当前表名）==========
SELECT TABLE_NAME AS warehouse_table
FROM information_schema.TABLES
WHERE TABLE_SCHEMA = DATABASE()
  AND (
    TABLE_NAME LIKE 'C\_%' ESCAPE '\\'
    OR TABLE_NAME LIKE 'c\_%' ESCAPE '\\'
    OR TABLE_NAME LIKE '\_\_oms\_ren\_%' ESCAPE '\\'
  )
ORDER BY TABLE_NAME;

-- ========== 单表改名：大写 C_ 存在 → 临时名 → c_* ==========
-- c_sku
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND BINARY TABLE_NAME = 'C_sku');
SET @sql := IF(@need > 0, 'RENAME TABLE `C_sku` TO `__oms_ren_sku`', 'SELECT ''skip: C_sku'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = '__oms_ren_sku');
SET @sql := IF(@need > 0, 'RENAME TABLE `__oms_ren_sku` TO `c_sku`', 'SELECT ''skip: __oms_ren_sku'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;

-- c_bin_location
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND BINARY TABLE_NAME = 'C_bin_location');
SET @sql := IF(@need > 0, 'RENAME TABLE `C_bin_location` TO `__oms_ren_bin_location`', 'SELECT ''skip: C_bin_location'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = '__oms_ren_bin_location');
SET @sql := IF(@need > 0, 'RENAME TABLE `__oms_ren_bin_location` TO `c_bin_location`', 'SELECT ''skip: __oms_ren_bin_location'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;

-- c_inventory
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND BINARY TABLE_NAME = 'C_inventory');
SET @sql := IF(@need > 0, 'RENAME TABLE `C_inventory` TO `__oms_ren_inventory`', 'SELECT ''skip: C_inventory'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = '__oms_ren_inventory');
SET @sql := IF(@need > 0, 'RENAME TABLE `__oms_ren_inventory` TO `c_inventory`', 'SELECT ''skip: __oms_ren_inventory'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;

-- c_inbound_notice
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND BINARY TABLE_NAME = 'C_inbound_notice');
SET @sql := IF(@need > 0, 'RENAME TABLE `C_inbound_notice` TO `__oms_ren_inbound_notice`', 'SELECT ''skip: C_inbound_notice'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = '__oms_ren_inbound_notice');
SET @sql := IF(@need > 0, 'RENAME TABLE `__oms_ren_inbound_notice` TO `c_inbound_notice`', 'SELECT ''skip: __oms_ren_inbound_notice'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;

-- c_inbound_box
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND BINARY TABLE_NAME = 'C_inbound_box');
SET @sql := IF(@need > 0, 'RENAME TABLE `C_inbound_box` TO `__oms_ren_inbound_box`', 'SELECT ''skip: C_inbound_box'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = '__oms_ren_inbound_box');
SET @sql := IF(@need > 0, 'RENAME TABLE `__oms_ren_inbound_box` TO `c_inbound_box`', 'SELECT ''skip: __oms_ren_inbound_box'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;

-- c_inbound_box_line
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND BINARY TABLE_NAME = 'C_inbound_box_line');
SET @sql := IF(@need > 0, 'RENAME TABLE `C_inbound_box_line` TO `__oms_ren_inbound_box_line`', 'SELECT ''skip: C_inbound_box_line'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = '__oms_ren_inbound_box_line');
SET @sql := IF(@need > 0, 'RENAME TABLE `__oms_ren_inbound_box_line` TO `c_inbound_box_line`', 'SELECT ''skip: __oms_ren_inbound_box_line'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;

-- c_parcel
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND BINARY TABLE_NAME = 'C_parcel');
SET @sql := IF(@need > 0, 'RENAME TABLE `C_parcel` TO `__oms_ren_parcel`', 'SELECT ''skip: C_parcel'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = '__oms_ren_parcel');
SET @sql := IF(@need > 0, 'RENAME TABLE `__oms_ren_parcel` TO `c_parcel`', 'SELECT ''skip: __oms_ren_parcel'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;

-- c_parcel_arrival
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND BINARY TABLE_NAME = 'C_parcel_arrival');
SET @sql := IF(@need > 0, 'RENAME TABLE `C_parcel_arrival` TO `__oms_ren_parcel_arrival`', 'SELECT ''skip: C_parcel_arrival'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = '__oms_ren_parcel_arrival');
SET @sql := IF(@need > 0, 'RENAME TABLE `__oms_ren_parcel_arrival` TO `c_parcel_arrival`', 'SELECT ''skip: __oms_ren_parcel_arrival'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;

-- c_parcel_item
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND BINARY TABLE_NAME = 'C_parcel_item');
SET @sql := IF(@need > 0, 'RENAME TABLE `C_parcel_item` TO `__oms_ren_parcel_item`', 'SELECT ''skip: C_parcel_item'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = '__oms_ren_parcel_item');
SET @sql := IF(@need > 0, 'RENAME TABLE `__oms_ren_parcel_item` TO `c_parcel_item`', 'SELECT ''skip: __oms_ren_parcel_item'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;

-- c_sku_platform_map
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND BINARY TABLE_NAME = 'C_sku_platform_map');
SET @sql := IF(@need > 0, 'RENAME TABLE `C_sku_platform_map` TO `__oms_ren_sku_platform_map`', 'SELECT ''skip: C_sku_platform_map'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;
SET @need := (SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = '__oms_ren_sku_platform_map');
SET @sql := IF(@need > 0, 'RENAME TABLE `__oms_ren_sku_platform_map` TO `c_sku_platform_map`', 'SELECT ''skip: __oms_ren_sku_platform_map'' AS info');
PREPARE _s FROM @sql; EXECUTE _s; DEALLOCATE PREPARE _s;

-- ========== 执行后复查 ==========
SELECT TABLE_NAME AS warehouse_table_after
FROM information_schema.TABLES
WHERE TABLE_SCHEMA = DATABASE()
  AND TABLE_NAME LIKE 'c\_%' ESCAPE '\\'
ORDER BY TABLE_NAME;

-- ========== 若上面全是 skip 且已是 c_*：无需再改，直接部署后端即可 ==========
-- 若仍残留 C_*（区分大小写 Linux），可手工一次性执行（会失败则勿重复跑）：
-- RENAME TABLE
--   `C_sku` TO `__oms_ren_sku`, `C_bin_location` TO `__oms_ren_bin_location`,
--   `C_inventory` TO `__oms_ren_inventory`, `C_inbound_notice` TO `__oms_ren_inbound_notice`,
--   `C_inbound_box` TO `__oms_ren_inbound_box`, `C_inbound_box_line` TO `__oms_ren_inbound_box_line`,
--   `C_parcel` TO `__oms_ren_parcel`, `C_parcel_arrival` TO `__oms_ren_parcel_arrival`,
--   `C_parcel_item` TO `__oms_ren_parcel_item`, `C_sku_platform_map` TO `__oms_ren_sku_platform_map`;
-- RENAME TABLE
--   `__oms_ren_sku` TO `c_sku`, `__oms_ren_bin_location` TO `c_bin_location`,
--   `__oms_ren_inventory` TO `c_inventory`, `__oms_ren_inbound_notice` TO `c_inbound_notice`,
--   `__oms_ren_inbound_box` TO `c_inbound_box`, `__oms_ren_inbound_box_line` TO `c_inbound_box_line`,
--   `__oms_ren_parcel` TO `c_parcel`, `__oms_ren_parcel_arrival` TO `c_parcel_arrival`,
--   `__oms_ren_parcel_item` TO `c_parcel_item`, `__oms_ren_sku_platform_map` TO `c_sku_platform_map`;