subtable - Related information

• How to query and insert after mysql divides the table through merge

  after dividing the table according to the id model through merge, is the query directly querying the main table? If so, the sub-table will be meaningless! Some people say that through union joint query, then it is estimated that it is not as fast as look...

  Merge subtable mysql

  Mar.18,2021
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-64f5-1b363b7-4ec60.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b363b7-4ec60.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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