19 lines
1.1 KiB
SQL
19 lines
1.1 KiB
SQL
-- 第一阶段：学生信息表增强
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-- 说明：为学生信息表添加批次相关字段
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-- 1. 修改学生信息表，添加批次相关字段
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ALTER TABLE xg_student_info
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ADD COLUMN last_batch_id BIGINT COMMENT '最后参与的批次ID' AFTER remark,
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ADD COLUMN last_edit_batch_id BIGINT COMMENT '最后编辑的批次ID' AFTER last_batch_id,
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ADD COLUMN info_lock_status TINYINT DEFAULT 0 COMMENT '信息锁定状态(0:正常,1:锁定)' AFTER last_edit_batch_id,
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ADD COLUMN lock_reason VARCHAR(500) COMMENT '锁定原因' AFTER info_lock_status,
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ADD COLUMN last_batch_submit_time DATETIME COMMENT '最后批次提交时间' AFTER lock_reason;
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-- 2. 创建索引
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CREATE INDEX idx_xg_student_info_batch ON xg_student_info(last_batch_id, last_edit_batch_id);
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CREATE INDEX idx_xg_student_info_grade_college ON xg_student_info(grade, college_id);
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CREATE INDEX idx_xg_student_info_major_class ON xg_student_info(major_id, class_id);
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CREATE INDEX idx_xg_student_info_lock_status ON xg_student_info(info_lock_status);
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-- 验证修改
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SELECT 'Student info table enhancement completed!' as message; |