Question

请帮助我通过python编程语言从MSSQL Server获取数据。我需要简单的实现，比如使用select命令获取所有表数据并使用过程来操作数据。另外哪个模块将用于python和MSSQL之间的构建通信。

Answer 1

我使用了这段代码，效果很好。

from os import getenv
import pymssql

server = getenv("PYMSSQL_TEST_SERVER")
user = getenv("PYMSSQL_TEST_USERNAME")
password = getenv("PYMSSQL_TEST_PASSWORD")

conn = pymssql.connect(server, user, password, "tempdb")
cursor = conn.cursor()
cursor.execute("""
IF OBJECT_ID('persons', 'U') IS NOT NULL
    DROP TABLE persons
CREATE TABLE persons (
    id INT NOT NULL,
    name VARCHAR(100),
    salesrep VARCHAR(100),
    PRIMARY KEY(id)
)
""")
cursor.executemany(
    "INSERT INTO persons VALUES (%d, %s, %s)",
    [(1, 'John Smith', 'John Doe'),
     (2, 'Jane Doe', 'Joe Dog'),
     (3, 'Mike T.', 'Sarah H.')])
# you must call commit() to persist your data if you don't set autocommit to True
conn.commit()

cursor.execute('SELECT * FROM persons WHERE salesrep=%s', 'John Doe')
row = cursor.fetchone()
while row:
    print("ID=%d, Name=%s" % (row[0], row[1]))
    row = cursor.fetchone()

conn.close()

Answer 2

import pymssql
conn = pymssql.connect(host='SQL01', user='user', password='password', database='mydatabase')
cur = conn.cursor()
cur.execute('CREATE TABLE persons(id INT, name VARCHAR(100))')
cur.executemany("INSERT INTO persons VALUES(%d, %s)", \
    [ (1, 'John Doe'), (2, 'Jane Doe') ])
conn.commit()  # you must call commit() to persist your data if you don't set autocommit to True

cur.execute('SELECT * FROM persons WHERE salesrep=%s', 'John Doe')
row = cur.fetchone()
while row:
    print "ID=%d, Name=%s" % (row[0], row[1])
    row = cur.fetchone()

# if you call execute() with one argument, you can use % sign as usual
# (it loses its special meaning).
cur.execute("SELECT * FROM persons WHERE salesrep LIKE 'J%'")

conn.close()

通过Python

2 个答案: