我像这样用sqlalchmey创建一个表：
$dir = './files';
$files1 = preg_grep('/^([^.])/', scandir($dir));
for($x = 0; $x <= count($files1); $x++){
$f1 = fopen($dir . '/' .$files1[$x], 'r'); //
fseek($f1, 0, SEEK_SET);
while(($line = fgets($f1)) !== false){
array_push($data_array_list, $line);
}
}
数据：
db_code db_owner table_name row_cnt table_time bat_no \
0 D1022 SOURCING DIM_COMPANY 0.0 0.157496 D1022_0
1 D1022 SOURCING DIM_COMPANY_SITE 0.0 0.157496 D1022_0
2 D1022 SOURCING DIM_CONTRACT 0.0 0.157496 D1022_0
3 D1022 SOURCING DIM_COST_CENTER 0.0 0.157496 D1022_0
4 D1022 SOURCING DIM_ERP_COMMODITY 0.0 0.157496 D1022_0
insert_time
0 2018-10-06 11:52:18.672359
1 2018-10-06 11:52:18.672359
2 2018-10-06 11:52:18.672359
3 2018-10-06 11:52:18.672359
4 2018-10-06 11:52:18.672359
from sqlalchemy import create_engine
from sqlalchemy import text
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import Column,Integer,String,Float,TIMESTAMP
import pandas as pd
import time
from datetime import datetime
Base = declarative_base()
class Tbl_Copy1(Base):
__tablename__ = "TBL_COPY1"
DB_CODE = Column(String(50),primary_key=True)
DB_OWNER = Column(String(30),primary_key=True)
TABLE_NAME = Column(String(128),primary_key=True)
ROW_CNT = Column(Integer,nullable=True)
TABLE_TIME = Column(Float,nullable=True)
DAY_ID = Column(String(10),nullable=True)
BAT_NO = Column(String(20),nullable=True)
INSERT_TIME = Column(TIMESTAMP(timezone=False),nullable=True)
DEL_FLAG = Column(String(1),nullable=True,server_default=text('0'))
REMARK = Column(String(500),nullable=True)
Base.metadata.create_all(engine)
尽管它创建了一个表，但是当我向该表中插入数据时，它出错了：a = []
for i in dd.iterrows():
a.append(dict(i[1]))
start = time.time()
engine.execute(Tbl_Copy1.__table__.insert(),a)
end = time.time()
TBL_COPY1 InternalError: (pymysql.err.InternalError) (1364, "Field 'DB_CODE' doesn't have a default value") [SQL: 'INSERT INTO，我不知道该如何处理。谁能帮我吗？