Updating rows in mysql Isex chat app
I wanted to find the holy grail of SQL developers: the plain vanilla way that works everywhere. The INSERT ALL method probably enjoys some speed optimization above using the UNION ALL method, which is probably worth a point (that is why Oracle gets a 4 instead of just 3).
If an update on a row would result in a violation of a primary key or unique index, the update on that row is not performed.
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Application built with ajax saves number of page refreshes.
Before saving the data dont forget to sanitize the input to stop xss attacks and sql injections.
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Anyway, I noticed something very cool that I thought was absolutely ingenious.