Navicat导出Excel格式表名表结构

SELECT
    t.TABLE_NAME AS `表名`,
    t.TABLE_COMMENT AS `表注释`,
    c.COLUMN_NAME AS `字段名`,
    c.DATA_TYPE AS `类型`,
    c.CHARACTER_MAXIMUM_LENGTH AS `长度`,
    c.NUMERIC_SCALE AS `小数点`,
    CASE c.IS_NULLABLE WHEN 'NO' THEN '☑' ELSE '' END AS `不是null`,
    CASE c.COLUMN_KEY WHEN 'PRI' THEN '☑' ELSE '' END AS `主键`,
    c.COLUMN_COMMENT AS `字段注释`
FROM information_schema.TABLES t
LEFT JOIN information_schema.COLUMNS c
    ON t.TABLE_SCHEMA = c.TABLE_SCHEMA
    AND t.TABLE_NAME = c.TABLE_NAME
WHERE t.TABLE_SCHEMA = '你的数据库名'
-- AND t.TABLE_NAME = 'output_dispatch_plan' -- 单表就打开这个注释，多表注释掉
ORDER BY t.TABLE_NAME, c.ORDINAL_POSITION;

1. 修改 t.TABLE_SCHEMA = '你的数据库名' 换成实际库名
2. 单表导出：取消注释 AND t.TABLE_NAME = 'output_dispatch_plan'；要整个库全部表结构，把这行注释掉
3. 执行完，右键结果集 → 导出结果 → xlsx，直接拿到完整数据字典 Excel。