64 lines
2.3 KiB
SQL
64 lines
2.3 KiB
SQL
-- ===========================================
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-- 班级操行分管理系统 - v1.5 → v1.6 升级脚本
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-- 字符集: utf8mb4
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--
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-- 变更内容:
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-- 1. subjects 表添加 subject_code 列（科目代码）
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-- 2. subjects 表添加 sort_order 列（排序序号）
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-- 3. 更新已有科目的 subject_code
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--
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-- 兼容性: 使用存储过程实现幂等，phpMyAdmin 可直接执行
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-- ===========================================
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-- 升级步骤 1: subjects 添加 subject_code 列
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DROP PROCEDURE IF EXISTS `upgrade_step`;
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DELIMITER $$
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CREATE PROCEDURE `upgrade_step`()
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BEGIN
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IF NOT EXISTS (
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SELECT * FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'subjects'
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AND COLUMN_NAME = 'subject_code'
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) THEN
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ALTER TABLE `subjects`
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ADD COLUMN `subject_code` VARCHAR(20) DEFAULT NULL COMMENT '科目代码'
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AFTER `subject_name`;
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END IF;
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END$$
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DELIMITER ;
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CALL `upgrade_step`();
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DROP PROCEDURE IF EXISTS `upgrade_step`;
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-- 升级步骤 2: subjects 添加 sort_order 列
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DROP PROCEDURE IF EXISTS `upgrade_step`;
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DELIMITER $$
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CREATE PROCEDURE `upgrade_step`()
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BEGIN
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IF NOT EXISTS (
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SELECT * FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'subjects'
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AND COLUMN_NAME = 'sort_order'
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) THEN
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ALTER TABLE `subjects`
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ADD COLUMN `sort_order` INT DEFAULT 0 COMMENT '排序序号'
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AFTER `is_active`;
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END IF;
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END$$
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DELIMITER ;
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CALL `upgrade_step`();
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DROP PROCEDURE IF EXISTS `upgrade_step`;
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-- 升级步骤 3: 更新已有科目的 subject_code
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UPDATE `subjects` SET `subject_code` = 'CHI' WHERE `subject_name` = '语文' AND (`subject_code` IS NULL OR `subject_code` = '');
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UPDATE `subjects` SET `subject_code` = 'MATH' WHERE `subject_name` = '数学' AND (`subject_code` IS NULL OR `subject_code` = '');
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UPDATE `subjects` SET `subject_code` = 'ENG' WHERE `subject_name` = '英语' AND (`subject_code` IS NULL OR `subject_code` = '');
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-- 升级步骤 4: 设置默认排序
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UPDATE `subjects` SET `sort_order` = 1 WHERE `subject_name` = '语文' AND `sort_order` = 0;
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UPDATE `subjects` SET `sort_order` = 2 WHERE `subject_name` = '数学' AND `sort_order` = 0;
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UPDATE `subjects` SET `sort_order` = 3 WHERE `subject_name` = '英语' AND `sort_order` = 0;
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