samples/connect/python/connector.py

#!/usr/bin/python
# -*- coding: UTF-8 -*-
"""
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
        "License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.
"""

import mysql.connector

config = {
    "user": "root",
    "password": "",
    "host": "192.168.100.80",
    "port": 9030,
    "charset": "utf8"
}

# connect to doris
try:
    cnx = mysql.connector.connect(**config)
except mysql.connector.Error as err:
    print("connect to doris failed. {}".format(err))
    exit(1)
print("connect to doris successfully")

cursor = cnx.cursor()

# create database
try:
    cursor.execute("CREATE DATABASE IF NOT EXISTS db_test")
except mysql.connector.Error as err:
    print("create database failed. {}".format(err))
    exit(1)
print("create database successfully")

# set db context
try:
    cursor.execute("USE db_test")
except mysql.connector.Error as err:
    print("set db context failed. {}".format(err))
    exit(1)
print("set db context successfully")

# create table
sql = ("CREATE TABLE IF NOT EXISTS table_test(siteid INT, citycode SMALLINT, pv BIGINT SUM) " 
      "AGGREGATE KEY(siteid, citycode) "
      "DISTRIBUTED BY HASH(siteid) BUCKETS 10 "
      "PROPERTIES(\"replication_num\" = \"1\")")
try:
    cursor.execute(sql)
except mysql.connector.Error as err:
    print("create table failed. {}".format(err))
    exit(1)
print("create table successfully")

# insert data
sql = "INSERT INTO table_test values(1, 2, 3), (4, 5, 6), (1, 2, 4)"
try:
    cursor.execute(sql)
except mysql.connector.Error as err:
    print("insert data failed. {}".format(err))
    exit(1)
print("insert data successfully")

# query data
sql = "SELECT siteid, citycode, pv FROM table_test"
try:
    cursor.execute(sql)
except mysql.connector.Error as err:
    print("query data failed. {}".format(err))
    exit(1)
print("query data successfully")
print("siteid\tcitycode\tpv")
for (siteid, citycode, pv) in cursor:
    print("{}\t{}\t{}").format(siteid, citycode, pv)

# drop database
try:
    cursor.execute("DROP DATABASE IF EXISTS db_test")
except mysql.connector.Error as err:
    print("drop database failed. {}".format(err))
    exit(1)
print("drop database successfully")