SELECT
COLUMN_NAME as '列名',
DATA_TYPE as '字段类型',
CHARACTER_MAXIMUM_LENGTH as '长度',
column_key as '主键',
CASE
WHEN IS_NULLABLE = 'YES' THEN '是'
ELSE '否'
END as '是否为空',
COLUMN_DEFAULT as '默认值',
COLUMN_COMMENT as '备注'
FROM
INFORMATION_SCHEMA.COLUMNS
WHERE
table_schema = '库名'
and TABLE_NAME = '表名';
注意
库名一定要添加哦，不然不同库同名表的字段属性会被查询出来哦
