Extreme Thinking
mssql truncate log

2019-09-25


附上 T-SQL script 请将 换成您的 DB 名称

USE [master]  
GO  
ALTER DATABASE <DATABASE-NAME> SET RECOVERY SIMPLE WITH NO_WAIT  
GO  
ALTER DATABASE <DATABASE-NAME> SET RECOVERY SIMPLE 
GO  
USE <DATABASE-NAME>  
GO  
DBCC SHRINKFILE (N'<DATABASE-NAME>_log' , 2, TRUNCATEONLY)  
GO  
USE [master]  
GO  
ALTER DATABASE <DATABASE-NAME> SET RECOVERY FULL WITH NO_WAIT  
GO  
ALTER DATABASE <DATABASE-NAME> SET RECOVERY FULL
GO

在做之前可發telegram 通知 ,每做完 TRUNCATE DB log 就該 DB log 做完的通知

先設定 SQL script 可執行外部 指令

-- To allow advanced options to be changed.  
EXEC sp_configure 'show advanced options', 1;  
GO  
-- To update the currently configured value for advanced options.  
RECONFIGURE;  
GO  
-- To enable the feature.  
EXEC sp_configure 'xp_cmdshell', 1;  
GO  
-- To update the currently configured value for this feature.  
RECONFIGURE;  
GO  

在穿插於完成前後執行 (其中 CMDSQL 自行更名)

EXEC master..xp_CMDShell 'c:\script\telegram-bot-db.exe'  

那個 telegram-bot-db.exe 是 python 用 … pyinstall 編譯過的 參考

https://www.echochio.nctu.me/2019/09/python-pyinstaller/

附上 telegram-bot-db python

def telegram_send(bot_message,bot_chatID = '-3XXXXXXXX'):
    import requests
    bot_token = '866411090:AAEv-xxxxxxxxxxxxxxxxxxxx'
    send_text = 'https://api.telegram.org/bot' + bot_token + '/sendMessage?chat_id=' + bot_chatID + '&parse_mode=Markdown&text=' + bot_message
    response = requests.get(send_text)
    return response.json()
telegram_send("Truncate DBXXXXX 結束")

當然如果在大陸地區發 telegram 要過跳板 在外地可通的地方開 nginx 反向代理 參考

https://www.echochio.nctu.me/2019/02/phpservermonotor_telegram/