MySQL恢复误删数据图文教程

# 备份所有数据库
mysqldump -uroot -p123456 --all-databases > /backup/mysqldump/all.db
# 恢复数据
mysql -uroot -p db_name < /backup/mysqldump/db_name.db

SHOW VARIABLES LIKE '%log_bin%'

SHOW BINARY LOGS;

SHOW MASTER STATUS;

SHOW VARIABLES LIKE '%datadir%';

mysqlbinlog E:\test\result\binlog.000056 > E:\test\result\db.sql

mysqlbinlog --no-defaults --base64-output=decode-rows -v --database=oauth --start-datetime="2023-06-01 01:44:00" --stop-datetime="2023-06-01 01:48:00" F:\mysql-8.0.29-winx64\data\binlog.000058 > E:\test\result\db.sql

'==========================
'用VBS实现 MYSQL binglog DELETE 转 INSERT
'==========================
function replaceregex(patern,str,tagstr)
dim regex,matches
set regex=new regExp
regex.pattern=patern
regex.IgnoreCase=true
regex.global=true
matches=regex.replace(str,tagstr)
replaceregex=matches
end function

'Mysql binlog DELETE转INSERT==========
'VBS打开文本文件
Set oldStream = CreateObject("ADODB.Stream")
oldStream.CharSet = "utf-8"
oldStream.Open
'binLog 生成的 DELETE 原日志文件'
oldStream.LoadFromFile("E:\test\result\db.sql") 
oldText = oldStream.ReadText()
newText=replace(oldText,"### DELETE FROM", ";INSERT INTO")
newText=replace(newText,"### WHERE", "SELECT")
newText=replace(newText,"###", "")
newText=replace(newText,"@1=", "")
newText=replaceregex("@[1-9]=",newText, ",")
newText=replaceregex("@[1-9][0-9]=",newText, ",")
oldStream.Close
'VBS保存文件
Set newStream = CreateObject("ADODB.Stream")
newStream.Type = 2 'Specify stream type - we want To save text/string data.
newStream.Charset = "utf-8" 'Specify charset For the source text data.
newStream.Open 'Open the stream And write binary data To the object
newStream.WriteText newText
newStream.SaveToFile "mysqllogOK.sql", 2 'DELETE转成INSERT以后的新的SQL文件名
newStream.Close