one database of user balance, one database of order table, one database of fund details users use balance to place orders, how to ensure that no more orders will be placed and the data are consistent in the case of large concurrency ...
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-64f5-1bcaa37-30a31.MAI); waiting for someone to free some space... (errno: 28 "No space left on device") MySQL Errno : 1021 Message : Disk full (/tmp/#sql-temptable-64f5-1bcaa37-30a31.MAI); waiting for someone to free some space... (errno: 28 "No space left on device") Need Help?