python 交互式命令行数据库连接助手 -- mysql、sql server (mssql)、redis

目录

• python 交互式命令行数据库连接助手 0. 操作示例
• 1. python 连接mssql
• 2. python 连接mysql
• 3. python 连接redis
• n. Tips

python 交互式命令行数据库连接助手

目前支持mysql 、mssql 、redis

完整代码已上传至github https://github.com/b4zinga/PythonTools/blob/master/dbcli.py

0. 操作示例

python 连接mysql:

python连接mssql:

python连接redis

帮助

1. python 连接mssql

def conn(self):
db = pymssql.connect(server=self.host, port=int(self.port), user=self.user, password=self.passwd)
return db

2. python 连接mysql

def conn(self):
db = pymysql.connect(host=self.host, port=int(self.port), user=self.user, password=self.passwd, charset='utf8')
return db

3. python 连接redis

def conn(self):
sock = socket.socket()
try:
sock.connect((self.host, int(self.port)))
except Exception as err:
print(err)
sys.exit(0)
return sock

def exec(self, sql):
if sql=='':
return
sql = self.makeCmd(sql)
try:
self.db.send(sql.encode())
while True:
recv = self.db.recv(1024)
print(self.handleRecv(recv))
if len(recv)<1024:  # 循环接收1024, 如果长度小于1024则默认后面已经无内容,break
break
except Exception as err:
print(err)

@staticmethod
def makeCmd(cmd):
command = "*"
cmd = cmd.split()
command = command + str(len(cmd)) + '\r\n'
for c in cmd:
command = command + '$' + str(len(c)) + '\r\n' + c + '\r\n'
return command

@staticmethod
def handleRecv(recvdate):
recvdate = recvdate.decode()
if recvdate.startswith('*'):
recvdate=recvdate[2:].strip('\r\n')
recvdate = re.sub('\$\d+\\r\\n', '', recvdate)
return recvdate

n. Tips

1. mssql命令

查询所有数据库:  SELECT Name FROM Master..SysDatabases ORDER BY Name
查询某数据库内所有表   : SELECT Name FROM DatabaseName..SysObjects Where XType='U' ORDER BY Name
XType='U'   : 表示所有用户表;
XType='S'   : 表示所有系统表;