[Available in actual measurement] python + mssql Alibaba Cloud

In order to build a simple company website, I rented an Alibaba Cloud virtual host with a database. Although it is temporarily not available, it is also excellent as a test platform.

Python requires pymssql to connect to MSSQL, but the installation always fails. I found out that pymssql only supports python3.7 at present, and the poor error message is not clear. Uninstalling the latest installation of 3.8.5 will go smoothly. Pit pit pit! ! !

The Alibaba Cloud console can view the account information of the database. Basically, you can successfully connect according to the introduction of this page https://www.cnblogs.com/baxianhua/p/10584133.html

Create a table

import pymssql

conn=pymssql.connect(host='xxxx.my3w.com',user='xxxx',password='xxxx',database='xxxx_db',charset='utf8')
cursor = conn.cursor()
print(conn)
print(cursor)
print('connect to db success')


#创建表，删除表
cursor.execute("""
IF OBJECT_ID('test1','U') IS NOT NULL
    DROP TABLE test1
CREATE TABLE test1(
    tid INT NOT NULL,
    age int,
    school VARCHAR(150),
    PRIMARY KEY(tid))
""")
conn.commit()

cursor.close()

conn.close()

2. Write some data

import pymssql

conn=pymssql.connect(host='xxxx.my3w.com',user='xxxx',password='xxxx',database='xxxx_db',charset='utf8')
cursor = conn.cursor()
print(conn)
print(cursor)
print('connect to db success')


#插入数据
cursor.executemany(
    "insert into test1 values(%d,%d,%s)",
        [
        (10001,5,'qiuhua school'),
        (10002,4,'chunhua school'),
        (10003,6,'qiu school'),
        (10004,5,'qiuhua school'),
        (10005,4,'chunhua school'),
        (10006,6,'qiu school'),
        (10007,5,'qiuhua school'),
        (10008,4,'chunhua school'),
        (10009,6,'qiu school'),
        (10010,5,'qiuhua school'),
        (10011,4,'chunhua school'),
        (10012,6,'qiu school'),
        (10013,5,'qiuhua school'),
        (10014,5,'qiuhua school'),
        (10015,4,'chunhua school'),
        (10016,6,'qiu school'),
        (10017,5,'qiuhua school'),
        (10018,4,'chunhua school'),
        (10019,6,'qiu school'),
        (10020,6,'qiu school')  
        ]
    )
conn.commit()

Check

import pymssql

conn=pymssql.connect(host='xxxx.my3w.com',user='xxxx',password='xxxx',database='xxxx_db',charset='utf8')
cursor = conn.cursor()
print(conn)
print(cursor)
print('connect to db success')


#查询

# cursor.execute('select * from test1 where school=%s','qiuhua school')
# cursor.execute('select * from test1 where age>= %s','5')
cursor.execute('select * from test1 where tid>= %s','10015')

for row in cursor:
    print(row)

print('query success')

cursor.close()

conn.close()

The final query result looks like this: there is a warning but it does not affect the result

Python 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:59:51) [MSC v.1914 64 bit (AMD64)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> 
===== RESTART: Z:\Python\python pymssql\mssql_query.py =====

Warning (from warnings module):
  File "Z:\Python\python pymssql\mssql_query.py", line 4
    import pymssql
DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working
<pymssql.Connection object at 0x000002059A28DD48>
<pymssql.Cursor object at 0x000002059A275DC8>
connect to db success
(10015, 4, 'chunhua school')
(10016, 6, 'qiu school')
(10017, 5, 'qiuhua school')
(10018, 4, 'chunhua school')
(10019, 6, 'qiu school')
(10020, 6, 'qiu school')
query success
>>>

[Available in actual measurement] python + mssql Alibaba Cloud

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