python連線資料庫

python連線mongodb查詢：

def

fech_mongo(data):
host = data.pop("
host")
port = int(data.pop("
port"))
db_name = data.pop("
db_name")
batch_no = data.pop("
batch_no")
print
(host,port,db_name,batch_no,data)
message = ''
for field in
data.keys():
client =pymongo.mongoclient(host, port)
db =client[db_name]
table_name = field.split("."
)[0]
key = field.split("
.")[1]
collection_set =db[table_name]
try:
value = collection_set.find_one()[key]
if value !=data[field]:
message += field+"
"+data[field]+"
不等於"+value+","
except
exception:
logger.exception('')
return message

python連線sqlserver查詢

def

fethdata():
host = '
10.138.**。**
'user = 'sa'
password = '
f******93
'database = '
po******n
'conn = pymssql.connect(host=host, user=user, password=password, database=database, charset='
utf8')
cursor =conn.cursor()
cursor.execute(
'select top 1 businessid from business')
results =cursor.fetchall()
conn.close()
print(results)

注意：charset='utf8'

參考：python連線oracle

1.安裝cx_oracle版本：cx_oracle-5.3-11g.win-amd64-py3.4.exe(注意與python版本匹配)

不建議直接使用pip install cx_oracle命令安裝

2.安裝oracle客戶端：instantclient-basic-windows.x64-11.2.0.4.0.zip(注意版本和位數與python匹配)   

3.python連線oracle資料指令碼 

import

osos.environ[
'nls_lang
'] = '
simplified chinese_china.utf8'#
os.environ['path'] = 'd:\oracle\instantclient_11_2'
import
cx_oracle
if__name__ == '
__main__':
str = '
vcs_prod/[email protected]/orcl
'conn =cx_oracle.connect(str)
sql = "
select * from m_contact_info where business_id = '304815'
"cr =conn.cursor()
cr.execute(sql)
data =cr.fetchall()
print(data)

參考：

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