8 lines
284 B
MySQL
8 lines
284 B
MySQL
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-- 删除原有的唯一索引
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ALTER TABLE `sys_param` DROP INDEX `uk_param_type_code`;
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-- 删除param_code字段
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ALTER TABLE `sys_param` DROP COLUMN `param_code`;
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-- 创建新的唯一索引
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ALTER TABLE `sys_param` ADD UNIQUE KEY `uk_param_type_name` (`param_type`, `param_name`);
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