225 lines
7.3 KiB
SQL
225 lines
7.3 KiB
SQL
-- =============================================================================
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-- 刷新 xg_student_msg 冗余字段：班级名称、专业名称
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--
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-- 背景：老师修改班级/专业后，xg_class_msg、sys_dept 已更新，
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-- 但 xg_student_msg 上冗余的 class_name、major_name 仍为旧值。
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--
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-- 刷新口径（与 vw_jw_student_export 一致）：
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-- * class_name ← 关联班级 xg_class_msg.class_name（按 class_id）
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-- * major_name ← 优先学生 major_id → sys_dept.dept_name
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-- 其次班级 major_id → sys_dept.dept_name
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-- 再回退 xg_class_msg.major_name
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--
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-- 用法：
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-- mysql -h <host> -u root -p hzdyjs_xg < docs/数据库脚本/2026-09-02-xg_student_msg-refresh-class-major-name.sql
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--
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-- 建议：先执行「一、预览」确认影响范围，再执行「二、更新」
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-- =============================================================================
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SET NAMES utf8mb4;
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-- -----------------------------------------------------------------------------
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-- 一、预览：即将刷新的记录数
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-- -----------------------------------------------------------------------------
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SELECT '========== 1. 班级名称不一致（将刷新）==========' AS section;
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SELECT COUNT(*) AS need_refresh_class_name
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FROM xg_student_msg m
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INNER JOIN xg_class_msg cm
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ON cm.deleted = 0
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AND cm.tenant_id = m.tenant_id
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AND cm.id = CAST(NULLIF(TRIM(m.class_id), '') AS UNSIGNED)
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WHERE m.deleted = 0
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AND NULLIF(TRIM(m.class_id), '') IS NOT NULL
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AND (
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m.class_name IS NULL
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OR TRIM(m.class_name) = ''
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OR m.class_name <> cm.class_name
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);
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SELECT '========== 2. 专业名称不一致（将刷新）==========' AS section;
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SELECT COUNT(*) AS need_refresh_major_name
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FROM xg_student_msg m
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LEFT JOIN xg_class_msg cm
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ON cm.deleted = 0
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AND cm.tenant_id = m.tenant_id
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AND cm.id = CAST(NULLIF(TRIM(m.class_id), '') AS UNSIGNED)
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LEFT JOIN sys_dept dm_m
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ON dm_m.dept_id = CAST(NULLIF(TRIM(m.major_id), '') AS UNSIGNED)
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AND dm_m.del_flag = '0'
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AND dm_m.tenant_id = m.tenant_id
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LEFT JOIN sys_dept dm_cm
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ON dm_cm.dept_id = cm.major_id
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AND dm_cm.del_flag = '0'
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AND dm_cm.tenant_id = m.tenant_id
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WHERE m.deleted = 0
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AND COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name) IS NOT NULL
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AND TRIM(COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name)) <> ''
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AND (
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m.major_name IS NULL
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OR TRIM(m.major_name) = ''
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OR m.major_name <> COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name)
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);
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SELECT '========== 3. 不一致样例（班级名称，最多 20 条）==========' AS section;
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SELECT
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m.id,
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m.student_no AS 学号,
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m.name AS 姓名,
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m.class_id,
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m.class_name AS 当前班级名称,
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cm.class_name AS 新班级名称
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FROM xg_student_msg m
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INNER JOIN xg_class_msg cm
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ON cm.deleted = 0
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AND cm.tenant_id = m.tenant_id
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AND cm.id = CAST(NULLIF(TRIM(m.class_id), '') AS UNSIGNED)
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WHERE m.deleted = 0
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AND NULLIF(TRIM(m.class_id), '') IS NOT NULL
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AND (
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m.class_name IS NULL
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OR TRIM(m.class_name) = ''
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OR m.class_name <> cm.class_name
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)
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ORDER BY m.student_no
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LIMIT 20;
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SELECT '========== 4. 不一致样例（专业名称，最多 20 条）==========' AS section;
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SELECT
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m.id,
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m.student_no AS 学号,
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m.name AS 姓名,
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m.major_id,
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m.major_name AS 当前专业名称,
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COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name) AS 新专业名称
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FROM xg_student_msg m
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LEFT JOIN xg_class_msg cm
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ON cm.deleted = 0
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AND cm.tenant_id = m.tenant_id
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AND cm.id = CAST(NULLIF(TRIM(m.class_id), '') AS UNSIGNED)
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LEFT JOIN sys_dept dm_m
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ON dm_m.dept_id = CAST(NULLIF(TRIM(m.major_id), '') AS UNSIGNED)
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AND dm_m.del_flag = '0'
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AND dm_m.tenant_id = m.tenant_id
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LEFT JOIN sys_dept dm_cm
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ON dm_cm.dept_id = cm.major_id
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AND dm_cm.del_flag = '0'
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AND dm_cm.tenant_id = m.tenant_id
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WHERE m.deleted = 0
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AND COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name) IS NOT NULL
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AND TRIM(COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name)) <> ''
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AND (
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m.major_name IS NULL
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OR TRIM(m.major_name) = ''
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OR m.major_name <> COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name)
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)
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ORDER BY m.student_no
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LIMIT 20;
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-- -----------------------------------------------------------------------------
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-- 二、执行更新（确认预览无误后再执行）
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-- -----------------------------------------------------------------------------
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START TRANSACTION;
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-- 2.1 刷新班级名称
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UPDATE xg_student_msg m
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INNER JOIN xg_class_msg cm
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ON cm.deleted = 0
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AND cm.tenant_id = m.tenant_id
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AND cm.id = CAST(NULLIF(TRIM(m.class_id), '') AS UNSIGNED)
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SET
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m.class_name = cm.class_name,
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m.update_time = NOW()
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WHERE m.deleted = 0
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AND NULLIF(TRIM(m.class_id), '') IS NOT NULL
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AND (
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m.class_name IS NULL
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OR TRIM(m.class_name) = ''
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OR m.class_name <> cm.class_name
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);
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SELECT ROW_COUNT() AS updated_class_name_rows;
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-- 2.2 刷新专业名称
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UPDATE xg_student_msg m
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LEFT JOIN xg_class_msg cm
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ON cm.deleted = 0
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AND cm.tenant_id = m.tenant_id
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AND cm.id = CAST(NULLIF(TRIM(m.class_id), '') AS UNSIGNED)
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LEFT JOIN sys_dept dm_m
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ON dm_m.dept_id = CAST(NULLIF(TRIM(m.major_id), '') AS UNSIGNED)
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AND dm_m.del_flag = '0'
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AND dm_m.tenant_id = m.tenant_id
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LEFT JOIN sys_dept dm_cm
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ON dm_cm.dept_id = cm.major_id
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AND dm_cm.del_flag = '0'
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AND dm_cm.tenant_id = m.tenant_id
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SET
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m.major_name = COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name),
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m.update_time = NOW()
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WHERE m.deleted = 0
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AND COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name) IS NOT NULL
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AND TRIM(COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name)) <> ''
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AND (
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m.major_name IS NULL
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OR TRIM(m.major_name) = ''
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OR m.major_name <> COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name)
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);
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SELECT ROW_COUNT() AS updated_major_name_rows;
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-- 确认无误后提交；若要撤销请执行 ROLLBACK;
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COMMIT;
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-- -----------------------------------------------------------------------------
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-- 三、更新后复核
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-- -----------------------------------------------------------------------------
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SELECT '========== 5. 更新后仍不一致（应为 0 或接近 0）==========' AS section;
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SELECT
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(
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SELECT COUNT(*)
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FROM xg_student_msg m
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INNER JOIN xg_class_msg cm
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ON cm.deleted = 0
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AND cm.tenant_id = m.tenant_id
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AND cm.id = CAST(NULLIF(TRIM(m.class_id), '') AS UNSIGNED)
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WHERE m.deleted = 0
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AND NULLIF(TRIM(m.class_id), '') IS NOT NULL
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AND (
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m.class_name IS NULL
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OR TRIM(m.class_name) = ''
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OR m.class_name <> cm.class_name
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)
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) AS remain_class_name_mismatch,
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(
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SELECT COUNT(*)
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FROM xg_student_msg m
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LEFT JOIN xg_class_msg cm
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ON cm.deleted = 0
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AND cm.tenant_id = m.tenant_id
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AND cm.id = CAST(NULLIF(TRIM(m.class_id), '') AS UNSIGNED)
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LEFT JOIN sys_dept dm_m
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ON dm_m.dept_id = CAST(NULLIF(TRIM(m.major_id), '') AS UNSIGNED)
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AND dm_m.del_flag = '0'
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AND dm_m.tenant_id = m.tenant_id
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LEFT JOIN sys_dept dm_cm
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ON dm_cm.dept_id = cm.major_id
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AND dm_cm.del_flag = '0'
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AND dm_cm.tenant_id = m.tenant_id
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WHERE m.deleted = 0
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AND COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name) IS NOT NULL
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AND TRIM(COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name)) <> ''
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AND (
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m.major_name IS NULL
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OR TRIM(m.major_name) = ''
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OR m.major_name <> COALESCE(dm_m.dept_name, dm_cm.dept_name, cm.major_name)
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)
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) AS remain_major_name_mismatch;
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