如何通过python从mysql检索零填充列?

时间:2018-11-04 06:33:12

标签: python python-3.x mysql-python zerofill

我在mysql中有一个表,如下所示:

CREATE TABLE `province` (
  `pid` int(2) unsigned zerofill NOT NULL,
  `pname` varchar(255) CHARACTER SET utf8 COLLATE utf8_persian_ci DEFAULT NULL,
  `family` int(12) DEFAULT NULL,
  `population` int(11) DEFAULT NULL,
  `male` int(11) DEFAULT NULL,
  `female` int(11) DEFAULT NULL,
  PRIMARY KEY (`pid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_persian_ci

请注意,第一列(pid)为零填充列 表(省)中的数据如下:

=========================================
|pid|pname|family|population|male|female|
=========================================
|02 | 'A' |  12  |    20    |  8 |   5  |
=========================================
|03 | 'B' |  25  |    20    |  7 |   6  |
=========================================
|05 | 'c' |  34  |     5    |  7 |   9  |
=========================================

我想通过python检索pid列,所以我的python代码是:

import mysql.connector

if __name__ == '__main__':
    data = []
    res = []
    cnx = mysql.connector.connect(user='mehdi', password='mehdi', host='127.0.0.1', database='cra_db')
    cursor = cnx.cursor()
    qrystr = 'SELECT pid FROM province;'
    cursor.execute(qrystr)
    print(cursor.fetchall())
    cnx.close()     

但是当我运行此python代码时,发生此异常:

返回的结果带有错误集   第11行中的文件“ C:\ Users \ M_Parastar \ Desktop \ New folder \ ttt.py”     打印(cursor.fetchall())


您是否知道如何通过python检索零填充列?

1 个答案:

答案 0 :(得分:0)

游标返回一个可迭代的python对象,将“ print(cursor.fetchall())”替换为“对于游标中的行:打印(行)”。访问Connector/Python API Reference