Databases
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Usersdbo
USsmartcity
 

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  1. USsmartcity
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    1. This table or related slice is empty.
    1. POBest way to manage row expiration in mysql
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    1. This table or related slice is empty.
    1. CO@RaymondNijland I'm only updating records to change their status. They are transactional rows which when expired they still serve statistics/billing purposes. My understanding of MCC is that it's used to create different versions of the same row, but in my case the row changes (permanently) to a status where it's not used by the application anymore (besides back-office sporadic reading access)
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      1. POBest way to manage row expiration in mysql
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    2. CO@BurhanKhalid Objective is to speeding the reading of non-expired rows. By BOL I mean a variable to check whether is expired/non expired, but could also be a tinyINT if the type of status of the row can also be a third one. THe reason why I wrote BOl is that I have little understanding on the performance of indexing based on the variable type, and I guessed with a boolean would be faster. There is no current table size as the app is being developed. As per your last line: why should I make the query run through the whole table, expired rows will be much more than a few thousands.
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      1. POBest way to manage row expiration in mysql
      1. USsmartcity
    3. COGreat answer, I will test it and report back. Does this mean that I don't even need the timestamp column in the table? I knew about the scheduler, only was wondering whether it heavier that a cron job, but considering that mysql has current_timestamp and timestampdiff function yes, it seems the way to go.
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