IF NOT EXISTS (SELECT * FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'sp_oper' AND COLUMN_NAME = 'oper_code') THEN ALTER TABLE `sp_oper` ADD COLUMN `oper_code` ...
ALTER TABLE dn_script ADD COLUMN task_type VARCHAR(32) DEFAULT NULL COMMENT '任务类型(核心模型/核心扩展/看板模型/分析模型/重要应用 ...
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