132 lines
4.1 KiB
SQL
132 lines
4.1 KiB
SQL
-- ================================================================
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-- 贫困生认定申请表 teacher_name 字段修复脚本
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-- 文件: database_fix_teacher_name.sql
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-- 功能: 添加缺失的 teacher_name 字段，并确保允许NULL
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-- ================================================================
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USE hzdyjs_xg;
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-- 1. 检查 teacher_name 字段是否存在
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SELECT '开始检查 teacher_name 字段...' AS message;
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SELECT
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COLUMN_NAME,
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IS_NULLABLE,
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COLUMN_DEFAULT,
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DATA_TYPE
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = 'hzdyjs_xg'
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AND TABLE_NAME = 'jcbt_poverty_application'
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AND COLUMN_NAME = 'teacher_name';
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-- 2. 添加 teacher_name 字段（如果不存在）
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SET @sql = '';
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SELECT COUNT(*) INTO @count
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = 'hzdyjs_xg'
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AND TABLE_NAME = 'jcbt_poverty_application'
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AND COLUMN_NAME = 'teacher_name';
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SELECT IF(@count = 0,
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'ALTER TABLE jcbt_poverty_application ADD COLUMN teacher_name varchar(100) DEFAULT NULL COMMENT ''班主任教师姓名'' AFTER teacher_id;',
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'SELECT ''teacher_name 字段已存在，检查是否需要修改属性'' AS result;'
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) INTO @sql;
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PREPARE stmt FROM @sql;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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-- 3. 修改 teacher_name 字段为允许 NULL（如果字段存在且不允许NULL）
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SET @sql = '';
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SELECT COUNT(*) INTO @count
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = 'hzdyjs_xg'
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AND TABLE_NAME = 'jcbt_poverty_application'
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AND COLUMN_NAME = 'teacher_name'
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AND IS_NULLABLE = 'NO';
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SELECT IF(@count > 0,
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'ALTER TABLE jcbt_poverty_application MODIFY COLUMN teacher_name varchar(100) DEFAULT NULL COMMENT ''班主任教师姓名'';',
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'SELECT ''teacher_name 字段已允许NULL'' AS result;'
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) INTO @sql;
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PREPARE stmt FROM @sql;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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SELECT '✅ teacher_name 字段修复完成' AS message;
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-- 4. 添加 teacher_id 字段（如果不存在）
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SET @sql = '';
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SELECT COUNT(*) INTO @count
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = 'hzdyjs_xg'
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AND TABLE_NAME = 'jcbt_poverty_application'
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AND COLUMN_NAME = 'teacher_id';
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SELECT IF(@count = 0,
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'ALTER TABLE jcbt_poverty_application ADD COLUMN teacher_id bigint(20) DEFAULT NULL COMMENT ''班主任教师ID'' AFTER class_name;',
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'SELECT ''teacher_id 字段已存在'' AS result;'
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) INTO @sql;
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PREPARE stmt FROM @sql;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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-- 5. 确保 teacher_id 字段允许 NULL
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SELECT '检查 teacher_id 字段...' AS message;
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SET @sql = '';
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SELECT COUNT(*) INTO @count
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = 'hzdyjs_xg'
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AND TABLE_NAME = 'jcbt_poverty_application'
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AND COLUMN_NAME = 'teacher_id'
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AND IS_NULLABLE = 'NO';
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SELECT IF(@count > 0,
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'ALTER TABLE jcbt_poverty_application MODIFY COLUMN teacher_id bigint(20) DEFAULT NULL COMMENT ''班主任教师ID'';',
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'SELECT ''teacher_id 字段已允许NULL或不存在'' AS result;'
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) INTO @sql;
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PREPARE stmt FROM @sql;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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SELECT '✅ teacher_id 字段修复完成' AS message;
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-- 6. 验证修复结果
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SELECT '=== 修复结果验证 ===' AS message;
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SELECT
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COLUMN_NAME AS '字段名',
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DATA_TYPE AS '数据类型',
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IS_NULLABLE AS '允许NULL',
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COLUMN_DEFAULT AS '默认值',
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COLUMN_COMMENT AS '注释'
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = 'hzdyjs_xg'
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AND TABLE_NAME = 'jcbt_poverty_application'
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AND COLUMN_NAME IN ('teacher_id', 'teacher_name')
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ORDER BY ORDINAL_POSITION;
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-- 7. 显示完整的字段结构确认
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SELECT '=== 相关字段结构确认 ===' AS message;
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SELECT
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COLUMN_NAME AS '字段名',
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DATA_TYPE AS '数据类型',
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IS_NULLABLE AS '允许NULL',
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COLUMN_DEFAULT AS '默认值',
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COLUMN_COMMENT AS '注释'
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = 'hzdyjs_xg'
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AND TABLE_NAME = 'jcbt_poverty_application'
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AND COLUMN_NAME IN (
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'class_id', 'class_name', 'teacher_id', 'teacher_name', 'recognition_group'
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)
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ORDER BY ORDINAL_POSITION;
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SELECT '🎉 teacher_name 和 teacher_id 字段修复完成！' AS message;
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SELECT '📝 请重启后端服务以生效！' AS note;
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