如何从python将空小数/日期时间插入到MYSQL中？

Question

我有数据文件：

'Laura', 'Laura Ellenburg', '5342 Picklied Trout Lane', 'Nashville', 'TN',
'38010','2000-02-22', ' ', '454-56-768'

注意末尾附近的“ ”。

我正在使用 python 代码：

  data = []
  infile = open ("./BIGPVFC-ASC10e/Employee.asc", "r")
  for line in infile:
    line = line.rstrip("\n")
    line = line.strip()
    seq = line.split(", ")
    for i in range(0,9):
      seq[i] = seq[i].strip("'")
    seq = tuple (seq)
    data.append(seq)
  infile.close()

  cursor.executemany ("""insert into PV_employee
  (employeeid, employeename, employeeaddress, employeecity, employeestate,
   employeezip, employeedatehired, employeebirthdate, employeesupervisor)
   values (%s, %s, %s, %s, %s, %s, %s, %s, %s)""", data)

我的表是：

create table PV_employee
 (employeeid         varchar(10)    not null
 ,employeename       varchar(25)    null
 ,employeeaddress    varchar(30)    null
 ,employeecity       varchar(20)    null
 ,employeestate      char(2)        null
 ,employeezip        varchar(10)         null  
 ,employeedatehired  datetime       null
 ,employeebirthdate  datetime      null
 ,employeesupervisor varchar(10)    null
 ,primary key (employeeid)
);

在那里我收到错误“警告：列的值超出范围......”

在空小数的情况下，我得到“警告：不正确的十进制值：列的‘’……”

我试图改变' '到''，'NULL'和NULL。这些似乎都不起作用。有什么建议？

Answer 1

SQL NULL 的 Python 等效项是None.