What does the sub-database and sub-table partition of the database mean?

what do you mean by sub-database and sub-table partitioning of the database?

Sub-library-and-sub-table mysql database
Mar.10,2021

Database sub-table: split a single business table redundant in a single database into N "logically related" business child tables;
Database sub-database: divide the business tables in the original single database into N "logically related" databases according to some algorithms;
Database partitioning: divide databases that were previously stored in a single physical storage area into less than N physical storage areas.

Previous: Regular help about time

Next: Help! Want to use python to generate a .csv dataset file, how to do it?

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e49422-666bd.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e49422-666bd.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?