date - MySQL compare unix timestamps -

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i'm trying records have date_created within 2 hours ago. it's unix timestamp created php function time(). here current query:

select id gsapi_synsets name = "beyonce" , date_created between  unix_timestamp(date_created) , unix_timestamp(date_add(curdate(),interval 2 hour))

doesn't seem working though.

if none of date_created values in future, can use this:

select id gsapi_synsets name = 'beyonce'   , date_created > unix_timestamp(now() - interval 2 hour);

if date_created values can in future, use this, cuts off @ current 

select id gsapi_synsets name = 'beyonce'   , date_created between unix_timestamp(now() - interval 2 hour) , unix_timestamp()

note calling unix_timestamp without argument returns timestamp "right now".


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