DELETE FROM exchange_holidays WHERE tradeDate = '2025-12-26' AND exchangeCode = 'SyS';
DELETE FROM exchange_holidays WHERE tradeDate = '2025-12-26' AND exchangeCode = 'SDK';
DELETE FROM exchange_holidays WHERE tradeDate = '2025-12-26' AND exchangeCode = 'SHK';
DELETE FROM exchange_holidays WHERE tradeDate = '2025-12-26' AND exchangeCode = 'HKS';
DELETE FROM exchange_holidays WHERE tradeDate = '2025-12-26' AND exchangeCode = 'JaS';
DELETE FROM exchange_holidays WHERE tradeDate = '2025-12-26' AND exchangeCode = 'WeS';
DELETE FROM exchange_holidays WHERE tradeDate = '2025-12-30' AND exchangeCode = 'MnS';
DELETE FROM exchange_holidays WHERE tradeDate = '2025-12-31' AND exchangeCode = 'JaS';
DELETE FROM exchange_holidays WHERE tradeDate = '2025-12-31' AND exchangeCode = 'TkS';
DELETE FROM exchange_holidays WHERE tradeDate = '2025-12-31' AND exchangeCode = 'SeS';
DELETE FROM exchange_holidays WHERE tradeDate = '2025-12-31' AND exchangeCode = 'MnS';
DELETE FROM exchange_holidays WHERE tradeDate = '2025-12-31' AND exchangeCode = 'BkS';