Using pymssql to connect to SQL Server in Windows - sql-server

Question

Pymssql -V:2.2.1
Python -V: 3.8
DB: SQL Server 2008 R2
This is my code：
class read_sql(object):
def __init__(self):
# 服务器名
self.server = HOST_24
# 用户名
self.user = SQL_SERVER_USER
# 密码
self.password = SQL_SERVER_PASSWORD
# 数据库名
self.database = PUBMED_DB
# 连接数据库
try:
self.conn = pymssql.connect(self.server, self.user, self.password, self.database)
# 创建cursor缓冲区,用来存放sql语句
self.cursor = self.conn.cursor()
except Exception as e:
print(e)
raise ValueError('数据库链接实例化出错')
def query(self, query_str):
# 输入query_str查询语句,内容返回到cursor缓冲区内
self.cursor.execute(query_str)
# 接收全部的返回结果行.
row = self.cursor.fetchall()
return row
if __name__ == "__main__":
sql_data = read_sql()
row = sql_data.query("SELECT TOP 1 * FROM JinMo_CheckTable order by id desc")
print(row)
This is my first time connecting to SQL Server!
I get this error:
pymssql._mssql.MSSQLDatabaseException: (18456, b"\xe7\x94\xa8\xe6\x88\xb7 'sa' \xe7\x99\xbb\xe5\xbd\x95\xe5\xa4\xb1\xe8\xb4\xa5\xe3\x80\x82DB-Lib error message 20018, severity 14:
General SQL Server error: Check messages from the SQL Server
DB-Lib error message 20002, severity 9:
Adaptive Server connection failed (192.168.0.24)
DB-Lib error message 20002, severity 9:
Adaptive Server connection failed (192.168.0.24)
Please give me some suggestions - thanks !