SELECT column_name AS columnName,
column_type AS columnType,
is_nullable AS nullable,
column_default AS columnDefault,
column_comment AS columnComment,
IF(column_key = 'PRI', '主键','') AS columnKey
FROM information_schema.`COLUMNS` WHERE table_name='dp_rpt_jcbx0401' AND table_schema=DATABASE()
ORDER BY ordinal_position ASC