使用Python实现Oracle数据库自动巡检程序

import cx_Oracle

# Oracle数据库连接信息
dsn = cx_Oracle.makedsn('hostname', 'port', 'SID')
connection = cx_Oracle.connect('username', 'password', dsn)

# 创建游标
cursor = connection.cursor()

# 执行SQL查询
cursor.execute('SELECT * FROM your_table')

# 处理查询结果
for row in cursor:
    print(row)

# 查询当前数据库会话数
cursor.execute('SELECT COUNT(*) FROM v$session')
session_count = cursor.fetchone()[0]
print(f"当前会话数: {session_count}")

# 查询数据库性能指标
cursor.execute('SELECT * FROM v$sysstat WHERE name = :stat_name', {'stat_name': 'user commits'})
commit_count = cursor.fetchone()[1]
print(f"用户提交次数: {commit_count}")

# 检查未加密的密码
cursor.execute('SELECT username FROM dba_users WHERE password_versions = \'10G\'')
insecure_users = [row[0] for row in cursor.fetchall()]
print(f"未加密密码的用户: {', '.join(insecure_users)}")

# 查询表空间使用情况
cursor.execute('SELECT tablespace_name, used_space, free_space FROM dba_tablespaces')
for row in cursor:
    tablespace, used, free = row
    print(f"表空间: {tablespace}, 已用空间: {used}, 剩余空间: {free}")

import schedule
import time

def perform_automatic_checks():
    # 在这里执行自动巡检任务

schedule.every(24).hours.do(perform_automatic_checks)  # 每24小时执行一次巡检任务

while True:
    schedule.run_pending()
    time.sleep(1)

import smtplib
from email.mime.text import MIMEText

def send_email_report(report):
    # 配置邮件服务器和凭据
    smtp_server = 'smtp.example.com'
    smtp_port = 587
    smtp_username = 'your_username'
    smtp_password = 'your_password'

    # 创建邮件内容
    msg = MIMEText(report, 'plain')
    msg['Subject'] = 'Oracle数据库巡检报告'
    msg['From'] = 'sender@example.com'
    msg['To'] = 'recipient@example.com'

    # 连接到邮件服务器并发送邮件
    with smtplib.SMTP(smtp_server, smtp_port) as server:
        server.starttls()
        server.login(smtp_username, smtp_password)
        server.sendmail('sender@example.com', 'recipient@example.com', msg.as_string())

# 在自动巡检任务中生成报告
def perform_automatic_checks():
    # 执行自动巡检任务并生成报告
    report = generate_report()
    
    # 发送报告邮件
    send_email_report(report)

import logging

# 配置日志记录
logging.basicConfig(filename='autodiscovery.log', level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')

def perform_automatic_checks():
    try:
        # 执行自动巡检任务
        report = generate_report()
        
        # 发送报告邮件
        send_email_report(report)

        # 记录巡检成功的日志
        logging.info('巡检成功')
    except Exception as e:
        # 处理异常并记录日志
        logging.error(f'巡检失败：{str(e)}')