I have a java swing application that connects to MySQL database and performs transactions perfectly alright. There are one-up numbers as well that are generated for transactions. Data does get committed most of the times without any issue. But there have been instances where, in some of the cases, the previously committed data gets wiped off from the database altogether and the one up numbers also rollback. For example, if I have done invoices with one up invoice numbers from 1 to 200, the next morning when I check the sales report, it shows transactions with ID from 1 to 100 only. The rest of the data go missing. But since I have printed invoice copies of all invoices from 1 to 200, I am certain that the transactions have indeed taken place. Is there anything in MySQL that I need to watch out for?? Will upgrading to MySQL version 8 help? I feared there is some kind of malware in the machine, so I have even tightened the antivirus but that hasn't helped. I have set a very strong MySQL DB password as well. Nothing seems to have helped prevent this from happening.
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