Database-lock - Related information

• I would like to ask you a question about the operation of MySQL database under concurrency.

  tools mysql (engine innoDB, isolation level REPEATABLE-READ) scenario (there are two operations in a transaction) Update the total score value in the user table; insert the change log of the credit record (key field: current change integral sco...

  Database-lock multithreaded mysql java

  Oct.04,2021
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-64f5-1b3ed65-2c44c.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3ed65-2c44c.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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