SELECT
    COLUMN_NAME F_FIELD,
    data_type F_DATATYPE,
    CHARACTER_MAXIMUM_LENGTH F_DATALENGTH,
    NUMERIC_PRECISION 精度,
    NUMERIC_SCALE 小数位数,
IF
    ( IS_NULLABLE = 'YES', '1', '0' ) F_ALLOWNULL,
    COLUMN_COMMENT F_FIELDNAME,
IF
    ( COLUMN_KEY = 'PRI', '1', '0' ) F_PRIMARYKEY,
    column_default F_DEFAULTS,
    CONCAT( upper( COLUMN_NAME ), '(', COLUMN_COMMENT, ')' ) AS 'F_DESCRIPTION' 
FROM
    INFORMATION_SCHEMA.COLUMNS 
WHERE
    TABLE_NAME = '表名' 
    AND TABLE_SCHEMA = '库名'

END