Hello readers!. If you having the much of redundant/duplicate data growing in your database you can delete it with just a single query as I wrote here. Let say I have a table Address and want to ...

I'm working on a web app, and it part of it, there is a very simple database-driven file/document manager. As a file manager, there is the possibility of sub-folders. So in the DB, I have the ...

代码报错：You can't specify target table 'Person' for update in FROM clause. chatgpt给的解释: 是的，MySQL不允许在同一个查询中直接更新 ...

Please do the following string replacements in the track_mysql_table_history.sql file before executing in the Mysql database: a. Replace the string 'MyDB' with the name of your database. b. Replace ...